Characters / Hamster & Gretel

2 Following

^{Click to see their civilian identities}

• Flying Brick: They both have the powers most would associate with Superman and most others in the category of being a Superman Substitute; Flight, Super-Strength, Super-Speed, Super-Toughness, Super-Breath and Eye Beams.
• Instant Costume Change: Hamster and Gretel can magically change back and forth between their superhero suits and normal appearances whenever they want.
• Pint-Sized Powerhouse: A duo of them; Hamster is a small rodent and Gretel, while bigger than him, is a little girl. Both are strong enough to punch meteors, smash through walls, and lift extremely heavy objects.
• Punny Name: Their duo name (and the series' title) is a play on the name of the fairy tale, Hansel and Gretel.
• Smart Animal, Average Human: Hamster is the intellectual one who uses his powers strategically, while Gretel is the impulsive one more focused on using brute force.
• Thou Shalt Not Kill: They don't kill their enemies, opting to either arrest them or talk them down.

Voiced by: Beck Bennett

• Action Pet: He's a pet hamster with the same Flying Brick powers as Gretel.
• Animal Superheroes: he's a hamster and a superhero.
• Best Friend: Gretel, as she is his owner, and Kevin, who deeply respects and understands his problems. They become "brother-like" friends, as he is competent to follow his tactics and bonded together as the series progresses, especially in "X-Terminator", "Hamnesia", "When Life Gives You Lemons", and "Over the Hill".
• Deadpan Snarker: Fitting his stoic personality, Hamster wastes no time dishing out deadpan quips and sarcastic remarks.
• A Dog Named "Dog": He's a hamster named Hamster.
• The Leader: Hamster often takes this role.
• Not So Stoic: Hamster is prone to have his funny moments, despite his stoicism.
• The Reliable One: He is usually better about following Kevin's directions and more strategic in combat than Gretel.
• The Stoic: Hamster isn't one to talk much, and has a bored, disinterested face towards everything, even when dancing to a song.
• Suddenly Voiced: At the end of the series premiere, much to Gretel's surprise.
• Talking Animal: As a result of the aliens granting him and his owner superpowers, Hamster has the ability to speak.
• Vocal Dissonance: Has a very deep voice for such a small animal.
• You Can Talk?: He gets this reaction a lot, especially since he doesn't talk much even though he can.

Voiced by: Meli Povenmire

• Affectionate Nickname: Fred and Dave call her, “Gretel Beans”.
• Alliterative Name: Gretel Grant-Gomez.
• Annoying Younger Sibling: Kevin cares for her deeply, but her lack of focus and recklessness certainly annoy him at times. She is very much aware of this fact and uses this trope to pester the Destructress and FistPuncher when they have her captured in "U.F. UH-OH!"
• The Big Girl: A Pint-Sized Powerhouse who punches a lot.
• Calling Your Attacks: Before executing her signature punches, she calls out, "[NOUN] PUNCH!!!"
• Character Development: As the series goes on, she becomes a bit more tactical and accepting towards her flaws, acknowledging that Kevin's help and advice is needed and she can’t always just punch her problems away. She also becomes more mindful and considerate towards Kevin’s struggles with not getting any superpowers like she and Hamster did.
• Clark Kenting: Gretel only uses a domino mask to hide her face, and notably even uses her real first name as her superhero name. Yet the implication is that most people, including her best friend, can't tell that Gretel Grant-Gomez is Gretel the superhero. The only exception is, hilariously, Van Dyke, who spots the undeniable commonality between the two:
  Van Dyke: Well, your name is Gretel, and you have a pet hamster, and you'd think that would have been enough, but I still didn't put it together until a couple of hours ago when I noticed that you are right-handed and Gretel is also right-handed!
• Does Not Like Spam: She hates Peppermints.
• Domino Mask: In her superhero form, she wears a mask that covers just her eyes.
• Everyone Has Standards: Knowing from the alien's true motives and openly saying Kevin will not get any power deeply made Gretel terribly sorry, at first she is somehow accidentally dissed Kevin, but in the last episode, his date with Hiromi didn't go well and the aliens mocking Kevin, Gretel is ashamed that her brother's life becomes a bad day.
• Fatal Flaw: Impulsiveness, Recklessness, and Foolishness, as she always makes situations worst, creating collateral damages, by simply punching instead of following tactics, sometimes she does think to focus.
• Foolish Sibling, Responsible Sibling: The reckless and shortsighted foolish to Kevin's practical and thoughtful responsible.
• Leeroy Jenkins: Gretel always tries to deal with her superhero problems by punching things, which often manage to make the problem worse.
• Mad Libs Catch Phrase: "[NOUN] PUNCH!"
• Negated Moment of Awesome: Gretel's attempt to punch the rock of Exclamation's suit, only for the debris to block it.
• Non-Standard Character Design: Gretel stands out the most of the entire cast, given her fuller face, broad grin, and slightly bigger eyes with visible pupils.
• Pink Means Feminine: Her super suit is pink all over, aside from her headband which turns blue.
• The Pollyanna: Continuing the trend of Pollyanna protagonists in Povenmire's shows and other Disney Channel shows, Gretel is optimistic regardless of the situation.
• Secret Identity: Gretel tries to keep her superhero side a secret from most others, especially her parents and Bailey.
• Vocal Dissonance: Her voice is rather deep for a 9-year-old girl. Her voice actress is 14 years old ^note as of the series premiere, after all.
• You Can Talk?: Her bewildered reaction to Hamster at the end of the first episode when he speaks his first words.

Voiced by: Michael Cimino

^{Click to see him as "Armor Suit Guy"}

^{Click to see him as "Super Guy"}

• Awesome by Analysis: Able to formulate all tactics for the duo, in critical moments.
• Badass Bookworm: His skills and learning in high school, along with his quick ingenuity have given him the methods to solve any critical situations for Hamster and Gretel.
• Badass Driver: In Exclamation Strikes Back, Kevin's driving skills are top-notch and beyond professional, as he can perform drifts and corners so fast that he can avoid Exclamation's mech suit powered by Hamster's and Gretel's superpowers, barely escape at the cost of the van being ripped apart the roof of his mother's minivan, he even performed a rail slide near the escalator after being flown on the moveable bridge.
• Badass Normal: Boring teenager, yet skilled strategist, tactical thinker, and skilled free-runner, even stood toe to toe against supervillains himself, twice, in "No Sprain, No Gain" and "Shush Hour".
• Big Brother Instinct: He acts as Gretel's support through the series, often giving her and Hamster advice. He also shows some shades of Overprotectiveness.
• Boring, but Practical: Being The Smart Guy, he may not have powers, but his critical thinking is crucial for planning due to Gretel always the Leeroy Jenkins to prevent her from being defeated by her foes, and while his driving skills are normal, he uses it to drive the alien's spaceship due to its controls being the same as his mom's minivan. Slightly Averted in driving, as he can perform drifts and cornerings while being chased by a huge mech.
• Butt-Monkey: He doesn't have the best of luck; the fact that a hamster got superpowers over him demonstrates how hapless he is. Plus, in the first episode alone, he gets drenched several times.
• Breakout Character: Kevin became a fan favorite among fans more than the titular duo, as he is described as the relatable focus of the show.
• Crouching Moron, Hidden Badass: A normal teenager who is not recognized by society, yet can think in dire situations, both strategically and tactically to help his sister, displays agility, evasion, and skills in parkour, builds machines with just instructions, and is skilled in live streaming & pool player. Kevin, the normal teenager without superpowers, defeated Pr. Exclamation, despite the help of his allies, he dealt the blow, on the power rock of his mech.
• Foolish Sibling, Responsible Sibling: The practical and thoughtful responsible for Gretel's reckless and shortsighted foolishness.
• Guile Hero: Though lacking the same powers as his little sister and her pet, he's still able to help in his own way; such as tricking FistPuncher and The Destructress into freeing the duo when they were trapped under a pile of heavy objects, the combined weight of which was too much for them to lift on their own.
• Handicapped Badass: Able to stand toe-to-toe with Itsy Bitsy while being injured with a sprained leg, while with the Librarian when he loses his voice.
• Ignored Expert: His main role in supplying Hamster and Gretel with the knowledge to solve problems is always overlooked because Gretel resorts to punching or ignores him altogether, and Hamster just doesn't respect him, Subverted since he acknowledges it in Shush Hour, he still follows Kevin's tactics to beat the villain of the week.
• I Just Want to Be Special: While not at all envious of his younger sister and her pet hamster being granted superpowers and is more than happy to help them out, he desires to be a superhero as well and is still upset at the aliens ignoring him in favor of the former two (and everyone else they encountered).
• Le Parkour: He displayed skills in free running in "Math Punch", "Xterminator", and "UF-Uh Oh", he even displays acrobatics and scooter tricks.
• No-Sell: The reason he wasn't given powers is because Mordros' anti-superpowers defense system can't do anything to someone without superpowers.
• Official Couple: Becomes one with Hiromi by the end of "Trading Faces."
• The Smart Guy: Shares this role with Hamster and Fred.
• Throw the Dog a Bone: He does end up getting the bigger end of the stick at times.
• Yank the Dog's Chain: The Season 1 finale in a nutshell where he gets the worst of it to the point that even Hamster and Gretel are sympathetic to him for his bad day that led to Hiromi breaking things off with him because of things going beyond his control while unable to tell her the truth for to protect her sister's identity and the aliens flatout told him that he was never meant to be given superpowers.

Winifred "Fred" Grant

Voiced by: Joey King

The cousin of Kevin and Gretel, who helps them with her tech.

• Deadpan Snarker: She's pretty deadpan already, but is still willing to snark whenever she feels like it.
• Disappeared Dad: Her father is never mentioned nor shown throughout the show.
• Expy: Dresses in dark clothes, wears glasses, talks almost exclusively in sarcasm, and has a cynical view of humanity. Think a Disney version of Daria.
• Gender-Blender Name: She's a teenage girl named Fred. Her actual name is Winifred, but she likes to go by Fred.
• Hidden Depths: Even though she doesn't care for actual cheerleading, she's a huge fan of an anime about a team of Magical Girl cheerleaders, and she’s a talented gymnast. She's also a huge wrestling fan and loves collecting tchotchkes, she is also a proficient fighter in President Fred.
• Ink-Suit Actor: Looks a lot like Joey King in animated form but with glasses; she even shares her brunette bob haircut.
• Mission Control: Kevin often relies on her technical know-how to learn key information about whatever challenge Hamster and Gretel need to deal with.
• Not So Stoic: "The Litigator vs. The Luchador" reveals that she's a very enthusiastic wrestling fan.
  Fred: LET'S BREAK SOME BONES!
• Perpetual Frowner: To the point that she needs training to fake a smile for undercover work. After successfully capturing the villain, she smiles for real, which only lasted a moment, until Kevin ruined it.
• Secret-Keeper: Until "Abuelita's World" and "My Invisible Friend", she was the only one other than Kevin who knew of Hamster and Gretel's superhero identities and that they're the same; Kevin knew she would never tell anyone because she has a "disdain for human society."
• She Cleans Up Nicely: In "Cheer, Cheer, Bang, Bang", she takes on a new look to infiltrate the cheerleaders and doesn't look half bad.
• The Smart Girl: She's pretty good with tech and is the trio's go-to for emergency reports.
• Wrestler in All of Us: Fred uses a wrestling suplex on the Imposter, ironically, she is a wrestling fan.

Voiced by: Matt Jones

• Butt-Monkey: Definitely the worst in the family, moreso than his son.
• Incredibly Lame Fun: Really enjoys his job as a landlord and fixer-upper. Also shares this with his wife Carolina, as they frequently enjoy things that anyone else would find stupid (such as a murder mystery at a home...which is actually just an excuse for the host for people to clean his house).
• No Celebrities Were Harmed: He has the face of a slightly younger Dan Povenmire, the creator of the show. Definitely a meta nod and Actor Allusion, as Gretel is voiced by Dan's real daughter; Meli Povenmire. Even Dave's voice here is raspy like Dan's is in real life.

Voiced by: Carolina Ravassa

• Cloudcuckoolander: Shows shades of this at times, such as all her superstitious beliefs and remedies as well as willfully posting an embarrassing meme of her own son that went viral because she didn’t want to get beat out by the photo club.
• Crouching Moron, Hidden Badass: At first she is somehow superstitious and a Cloudcuckoolander, but she is doing parkour at the Strawberry Festival while choking others to remove the strawberry in their mouths (continuously), and straightening Melissa's arm when being twisted by the Luchador, being a nurse surprisingly.
• Tuckerization: She’s named after her voice actress, Carolina Ravassa.

Voiced by: Dee Bradley Baker

• Dogs Are Dumb: Shown to do even the simplest of things completely wrong (e.g. walking backwards while playing fetch), gets his head stuck in mayo pots and vases, has his tongue perpetually sticking out of his mouth with an unassuming (sometimes fish-eyed) stare... Churro is a very unassuming creature.
• What Happened to the Mouse?: He has gotten less focus as the series progressed.

Voiced by: Jenny Lorenzo

• Like Father, Like Son: Carolina inherited stubbornness from her.
• Reasonable Authority Figure: Although Kevin and Gretel dread her strictness, she doesn't get angry at them after they try to sneak past her to save the city, admitting that rule-breaking is sometimes necessary for the sake of a good cause.
• Secret-Keeper: She finds out about Hamster and Gretel having powers, but agrees to keep it a secret from Kevin and Gretel's parents.
• Stern Grandparent: Even sings a song about it.

Voiced by: Jessica Darrow

• Early-Bird Cameo: She appears in a flashback during the song in "Recipe for Disaster" before making a full appearance in "the Litigator vs. the Luchador".

Voiced by: Joanna Hausmann

Dave's sister, Fred's peppy mom, and Kevin and Gretel's aunt.

• The Pollyanna: Stacy always has a positive take on the matter, even if inconvenient things happen to her. Her motto is "Positivity Brings Positiveness".

Voiced by: Priah Ferguson

• Black Best Friend: To Gretel.
• Does Not Like Spam: She doesn't like calzones. She thinks they're just folded pizzas.
• Genki Girl: She is very cheerful and easily excited.
• Locked Out of the Loop: She clearly has no idea both normal Gretel and superhero Gretel are the same person. Even in the first episode when she "met" superhero Gretel, she mentions she has "a best friend who's also named Gretel." This ends after "My Invisible Friend" where she learns of Gretel's secret identity.
• Secret-Keeper: Becomes the third character after Fred and Abuelita to know Hamster and Gretel are superheroes, as well as the first person outside the family to know that.
• Undying Loyalty: Bailey will always appreciate and support her favorite superheroes, even when everyone else turns against them or especially when she's angry with one of them for not trusting her with their secret identities.
• Unwitting Muggle Friend: She's Gretel's best friend, and, until "My Invisible Friend", completely unaware she's the superhero Gretel she fawns over.

Voiced by: Hiromi Dames

• Asian and Nerdy: A Japanese-American comic lover.
• Extreme Doormat: Season 2 episode "Stress Brawl" reveals that despite being a very hard-working student, she lets herself get pushed around to not upset anyone regardless of her own feelings thanks to her stress ball. That's until her stress ball gets empowered into a monster and ends up growing out of this at the end.
• Girly Girl with a Tomboy Streak: Hiromi is a kind and sweet girl with pink hair in pigtails who loves to wear her casual attire, also loves boys (especially her love interest, Kevin) and especially looking beautiful to everyone (even Kevin) in public. And besides that, she also loves comics (and as she works at a comic book shop where Kevin and his little sister, Gretel always visit anytime), video games, and especially kicking butt as shown in the episode, "Friday Night Fright" where she and Fred fight giant robots in their school too.
• Go-Getter Girl: She runs three school clubs at once.
• Love Interest: She serves as one to Kevin.
• Lovable Nerd: Is a very kind and friendly comic book geek.
• Official Couple: Becomes one with Kevin by the end of "Trading Faces."
• Secret Chaser: In "The Search for Super Guy", as she comes close toward finding out who Super Guy is, and she resumes such in the end in addition to learning of his connection with Hamster and Gretel.
• Secret-Keeper: When she finds out Hamster and Gretel's identities, she keeps it a secret for them.
• Ship Tease: It’s teased by Fred, once she realizes why Kevin still goes to the comic-book store.
• Tuckerization: Hiromi's character is named after her voice actress, Hiromi Dames.

Voiced by: Abby Espiritu

• Brainwashed: In her debut episode, she and the other cheerleaders were being mind-controlled to rob banks.
• Closet Geek: She and the rest of the cheerleaders are big fans of Yuko Cheerleading Warrior Attack 7, the same anime Fred just so happens to be into.
• Lampshade Hanging: Naya seems to do this whenever someone rips their clothes off to reveal an entirely different outfit.

Voiced by: Pamela Adlon

• Childish Tooth Gap: He's got a gap in his upper row of teeth, which not only adds to his youthful appearance, but also makes his upper row of teeth resemble an exclamation point turned sideways, alluding to how he's Professor Exclamation's son.
• Parental Neglect: Professor Exclamation treats Nordle’s intelligence as a bad thing since he’s only “very smart” and not “very, very, very, very smart” like his parents, builds his school assignments for him instead of allowing his to learn about them do himself, and drills the idea that school should be used as a method of crushing his opponents and achieving victory on a path to world domination rather than a place to grow, learn, and socialize.
• "Well Done, Son" Guy: Although he flaunts around his intelligence and insists on treating his fellow classmates as rivals to his victory at first, it’s only because his parents, particularly his supervillain father, forced this ideology on him and he is clearly doing it out of a desire to live up to their expectations and earn their approval and love.

• Expy: Of Norm.
• Parental Substitute: To Nordle. Especially after Professor Exclamation disappeared for an extended period of time.
• Sdrawkcab Name: Tobor <=> roboT
• Super-Powered Robot Meter Maid: He was ostensibly created to serve as Professor Exclamation's evil minion, but he mostly serves as Nordle's nanny.

Voiced by: Akintoye

Voiced by: Liza Koshy

• Deadpan Snarker: Often snarks about her job involving all these ridiculous supervillain stories is a waste of her talents as a reporter.
• Unwitting Instigator of Doom: Her dumping Bob Enfantiburg for a younger man (while he also constantly lost mayoral elections) would drive him to create a serum that would make him younger, only for that to turn him into Big Baby.

Jack Ampersand, aka Professor Exclamation

Voiced by: Phil LaMarr

• Big Bad Ensemble: The closest thing the show has to one with Fist Puncher & The Destructress as the most recurring and main enemies to Hamster & Gretel.
• Big Little Man: Implied. He's very tall, but his arms are oddly short, so he's likely very short but walks on stilts to make himself look taller. Subverted when it's revealed he lost his elbows in an industrial accident.
• Brought to You by the Letter "S": He wears an exclamation point on his hat and they're also featured on the chest of his robots. He's also got a tie with a smaller capital E on it, but it doesn't pop up as often.
• Everyone Went to School Together: Turns out he and Dave Grant were classmates.
• His Name Really Is "Barkeep": Implied in Romancing the Scone, where his son who doesn't know he's a super villain introduces him as "Professor Exclamation" and Bailey brings up Exclamation being his son Nordle's last name. Zigzagged after his birth name is revealed to be Jack Ampersand.
• Mad Scientist: Your typical super-villain mad scientist.
• Meaningful Name: He's got an exclamation point on his hat. The way he says it in his introduction also doubles as a Shout-Out to Professor X.
• Sigil Spam: All his robots have exclamation points on their chests.
• Starter Villain: He is the first villain that Gretel, Hamster, and Kevin faced in the show.
• Starter Villain Stays: Zigzagged, while he has made appearances in multiple episodes since the pilot, he has yet to go up against Hamster & Gretel in any of them.
• Villain Ball: Had he not mentioned that his energy cage draws power from the city's power grid, Kevin wouldn't have come up with the idea to cause a blackout to free Hamster and Gretel.

Lauren and Lyle, aka The Destructress and FistPuncher

Voiced by: Alyson Stoner (The Destructress/Lauren), Brock Powell (FistPuncher/Lyle)

^{Click to see their civilian identities}

A duo of supervillain siblings who were given powers by the same aliens who gave Hamster and Gretel their superpowers.

• Ambiguously Absent Parent: Lauren (The Destructress) and Lyle (FistPuncher) are twin teenage supervillains who were given powers to use for evil and whose parents were never mentioned or appeared. Lauren appeared to be a stereotypical mean before becoming a supervillain, while her brother Lyle was a temperate metal teenage boy. The two of them seem to live by themselves, and Lauren supports them by taking babysitting jobs when they fail to get money by robbing people. Those two parents were never mentioned in season one or two, even when they were arrested and sent to jail.
• Arch-Enemy: Ostensibly, being the most (and for a while only) recurring villains in the show thus far.
• Attention Whore: During her villainous days as the Destructress, Lauren constantly asked for likes from her followers on her phone.
• Babysitter Friendship: Lauren is a surprisingly good babysitter for Gretel and Bailey.
• Big Bad Ensemble: The closest thing the show has to one with Professor Exclamation as the most recurring and main enemies to Hamster & Gretel. While the Destructress eventually came to her senses, FistPuncher continues on in this role along with his new sidekick FootKicker.
• Dumb Muscle: FistPuncher just prefers punching things over anything else.
• Evil Counterpart: To Kevin and Gretel. Along with being empowered by the same aliens, they are also constantly at odds with each other. Also, FistPuncher likes punching stuff, same as Gretel.
• Forced into Evil: The aliens tell them specifically to use their powers for evil, so that's what they'll do. Downplayed as they're quite content with their position— or at least FistPuncher is.
• Good Pays Better: Lauren took a side gig as babysitter because earning money this way instead of stealing it won't get her and her brother in trouble. It's part of what kickstarted her Heel–Face Turn.
• Heel–Face Turn: In "Evil Upheaval", Lauren (The Destructress) is unhappy with doing super villain crimes, unlike her brother, and misses being a regular teenager; deciding to go to therapy, she realizes that she enjoys being good far more than she has ever enjoyed being a supervillain, Lauren decides to quit being The Destructress and hang up her cape to live her life as a civilian again, officially breaking off her villainous team-up with her brother and leaving him to be arrested by Hamster and Gretel once it’s made clear that he’s not going to be willing to change as she did. Her resolution promptly sticks throughout the remainder of the show.
  • The finale does redeem Lyle (FistPuncher).
• Hidden Depths: Lauren, who is thrilled to be the super villainess The Destructress and was implied to be a mean girl before she got powers, shows a surprising caring side when she takes a job as a babysitter to support herself and her brother because she can’t make money off of crime. While she had a practical reason for being nice because she needed the job as a babysitter, she showed a genuine interest in being a good babysitter and ensuring they were happy under her care, showing a kind side that was not seen before and caring for children.
• Instant Costume Change: Like Hamster and Gretel, Lauren and Lyle can also magically switch between their villain outfits and regular attire whenever they want.
• Ship Tease: The Destructress has one with Kevin as of "Fools of Engagement".
• Sibling Rivalry: They constantly argue over who is better. Kevin uses this against them in their first encounter, tricking them into a "lifting contest" that ends up removing all the heavy objects they pinned Hamster and Gretel with. The rivalry escalated after Lauren's High-Heel–Face Turn.
• Social Media Before Reason: The Destructress basically views everything in terms of likes and follows, the first time they got sent to jail she even asked the cops to take a picture and post it online for her.
• Spell My Name with a "The": Destructress insists on people speaking the "The" part of her name.
• Teeth-Clenched Teamwork: They are a sibling team who are constantly arguing with one another. Kevin uses this rivalry against them. The "teamwork" eventually dissipated entirely due to Lauren finding out that Good Feels Good, and FistPuncher's refusal to defect from villainy himself led to her breaking the team off.

El Luchador

Voiced by: Carlos Alazraqui

A supervillain wrestler.

• Badass Normal: So far he's proven to be the ONLY villain with no powers that can hold his own against Gretel. In fact in "The Litigator vs the Luchadore" Gretel needed multiple foreign objects and Melissa's help to finally take him down.
• Blood Knight: He's willing to fight ANYONE including women, superheroes (albeit a child hero), and even his own tag partner. In "Recipe for Disaster" he is ready to throw down at a restaurant over them having only one order of ropa viaja left.
• Charles Atlas Superpower: He has no visible superpowers, yet is able to fight against Gretel, who does have superpowers, with total ease.
• Dangerous Forbidden Technique: El Luchador's signature move is to bend the opponent's arm back at a 43 degree angle, which is stated to have been banned and part of the reason El Luchador is banned from wrestling.
• Flat Character: In "Recipe For Disaster" we never really get a backstory for his supervillain occupation, and he wass the only villain so far that didn’t really have much of an evil plan. He mainly just existed as an obstacle for Gretel to face halfway through one episode in her quest for her mother’s ropa viaja to be replaced, and even that doesn’t amount to much when she just ditches the fight anyway. Thankfully in "The Litigator vs. The Luchadore" he gets some time to shine.
• Heel–Face Turn: In "I Love Luchie", he's paroled from prison, gets married, and moves in next door to the Grant-Gomezes. While Gretel and Kevin are convinced he's up to something, it turns out that his wife is the one who's actually plotting a crime and was just panning to use an unwitting Luchador as a pawn; in reality, "Luchie" has sincerely reformed and just wants to resume his wrestling career and find love.
• Nice Job Fixing It, Villain!: Had he not taken out the referee in "The Litigator vs. The Luchadore" Melissa wouldn't have been able to turn the tide by hitting him with a folding chair.
• Noodle Incident: He gets away at the end "Recipe For Disaster" and we don't know how he ended up in jail in "The Litigator Vs. The Luchadore."
• Shaped Like Itself: He's a luchadore themed supervillain who dresses as a luchadore and used to work as a luchadore before he was banned from wrestling.
• Villainous Valour: In "The Litigator vs The Luchadore" he challenges for the PLOW Tag Team titles in a handicap match and kept on fighting while Gretel hit with multiple pieces of furniture.
• Would Hurt a Child: He's ready and willing to fight a child over some ropa viaja. Granted the child in question has super strength along with other kinds of powers, but still.

Voiced by: Casey Hamilton

A scientist who turned himself into a goatee by mistake and latches onto people's faces to control them.

• Beard of Evil: He is one, being a villainous sentient goatee and mustache.
• Beware the Silly Ones: A sentient evil clump of facial hair is pretty ridiculous even for this show, but he can trade blows with Hamster and Gretel, and even they aren't immune to his mind control powers.
• Half the Man He Used to Be: After being fed to a lawnmower at the end of his debut episode, by his second episode, he's lost so much hair mass he can't be a beard and mustache combo anymore, so he resorts to just being a mustache.
• Prehensile Hair: Comes with the territory of being sentient hair.
• Puppeteer Parasite: Having lost his original body, he can take control of others by latching onto their faces, regardless of gender, species, or capacity for natural facial hair growth.
• Right for the Wrong Reasons: Gretel immediately believed that her substitute teacher was evil due to her "hero hunch" and his goatee, with Kevin calling her out for assuming a goatee automatically made someone evil. Turns out they were both right and both wrong: the goatee was actually an evil former scientist who wanted to take control of Gretel to conquer the world, while Mr. Chabner himself was just an unassuming and innocent citizen that the goatee was using as a puppet to pose as a teacher to make the plan happen.

Voiced by: Karina La Voz

• Achilles' Heel: Her inability to cry on cue, which cost her her job on "Fresas de Amor".
• Bad Boss: She's defeated when her evil plan is revealed to entail sacrificing all the onions working for her, something they're not happy to learn that she couldn't care less about.
• Gratuitous Spanish: She occasionally adds a bit of Spanish into her dialogue, which is fitting since her name is Spanish for "onion".
• Green Thumb: Specifically in regards to onions and onion related plants.
• Meaningful Name: "La Cebolla" means "The Onion" in Spanish, and she can control onions.
• Ms. Fanservice: She has the body of your typical telenovela actress, which she mainly shows off during her Villain Song.
• Not-So-Harmless Villain: Even she admits that her power is not that useful. She still manages to kidnap Gretel and temporarily knock out Hamster though.
• Start of Darkness: She was once a cast member on a lesser-known telenovela called "Fresas de Amor", but was written off by contracting salmonella when she was unable to cry on cue. Desperate to get her job back, she quickly bought up all the onions in the city and tried to use them in various remedies to make herself cry to no avail. When she was hit by the Aliens' superpower ray, her excess absorption of onions odor caused her to develop the ability to talk to and control onions, which she chose to use to exact her revenge on society by making them all cry uncontrollably.
• Spicy Latina: She's a beautiful and somewhat haughty telenovela actress with a flair for the dramatic.
• What Kind of Lame Power Is Heart, Anyway?: The show is fully aware of how hilariously stupid of a superpower talking to onions is. This doesn't prevent her from showing impressive ingenuity with it while fighting Hamster and Gretel.

Voiced by: Michael Leon Wooley

A villain who can create life-like projections of people's greatest fears.

• Berserk Button: Being referred to as a puppet because his name sounds like "Marionette". Not helping when he considers himself a puppeteer of his chaos
• Master of Illusion: His staff can read people's minds and create holograms of their fears. He can even use it to go deeper into your subconscious and find more fears within your mind.

Voiced by: Camryn Grimes

• Affably Evil: She genuinely liked being with Bailey and wanted to take her to Bolgylvania with her.
• A Dog Named "Dog": Kind of like Hamster, Tina has a gerbil named Gerbil.
• Even Evil Has Loved Ones: Exploited; Gretel brings her friend Grobla from a space station to her so she would not have to kidnap Bailey and her dad anymore.
• Evil Counterpart: To Gretel, down to even having an intelligent pet like Hamster. Ultimately subverted after Gretel brings Tina's own best friend back.
• Expy: When she uses her supersuit, she has mechanical appendages similar to Doc Ock
• Friendly Enemies: When she, Gerbil and Grobla return in Game Changer, they have this dynamic with Hamster, Gretel and Bailey.
• Heel–Face Revolving Door: After Gretel hears her out and reunites her with her best friend Grobla, Tina decides to abort the mission and return home. Her Heel–Face Turn didn't last long though, as she was punished for her failure with the mission, and when offered a new mission, she accepted.
• I Just Want to Have Friends: While Tina's mission was to get Bailey's dad to develop a good video game for her country, her interest in Bailey is genuine, because really, she just wanted to have a friend after her own best friend is launched into space.
• Troubling Unchildlike Behavior: She's meant to be a child but despite that she works as a spy for a government and tried to kill Gretel, though she may not actually be a child.

Voiced by: Adam Rose

A songwriting supervillain who writes evil jingles that can possess anyone who hears them.

• Crippling Overspecialization: Each of his mind controlling ear-worms needs to be tailor-made to a specific target by matching the harmonic frequencies of the individual's DNA so he can't control more than a few people with one song.
• Ear Worm: Trope names taken literally and figuratively. The Taco Crunchies jingle was designed to specifically hypnotize Hamster and Gretel to do his bidding delivered by someone who dresses as a worm with an ear shaped collar.
• Mind-Control Music: Created the Taco Crunchies jingle to hypnotize Hamster and Gretel in particular. Only an Ear Worm greater than the Taco Crunchies jingle can break the hypnosis.
• Renaissance Man: Coming from a family of judgmental overachievers, the Earworm is talented in at least three fields: hair styling (which he got to be on television for only a week after following an online tutorial), science, and music writing (which he passed cum laude only after a couple months)
• Visual Pun: The Earworm's outfit consists of a large green worm tail in which the legs go, and a large, ear-shaped collar.
• "Well Done, Son" Guy: He comes from a "cruel family of judgmental overachievers", among whom he is considered a loser despite being able to become an expert hair stylist and start a career as a jingle writer in only a few weeks.

Voiced by: Diedrich Bader, Lucas Neff (as Billy), Camryn Grimes (as Record Scratch), Joey King (as Fred), Casey Wilson (as Ms. Night)

• Cardboard Prison: In his second appearance he was revealed to have been released from prison on good behavior, after three weeks.
• Cast as a Mask: Lucas Neff voices him when disguised as Billy and Camryn Grimes when disguised as Record Scratch.
• The Chessmaster: The Imposter's Evil Plans are complicated and prove how much of a master manipulator he is, as he'll gladly gloat about in his overly long Flashbacks:
  • In "Hamnesia", he had disguised himself as Record Scratch and intentionally used her sound-based machinery to hurl a truck in Hamster and Gretel's direction, knowing that Hamster would sacrifice himself, and knowing that Hamster would get amnesia from the way the truck hit his cranium. He then disguised himself as Billy and brought him home, and after gaining his trust, he used Hamster's superpowers in order to take a selfie with a specific high angle in order to locate a hidden fence of a secret government compartment, then used Hamster's resistance to electricity to disable said fence in order to steal an experimental flying tank prototype to terrorize the city with.
  • In "President Fred", The Imposter decides to audition for a play at a retirement home after let free from prison, only for his role to be snatched away by Eastside High student Chad Goldenboy. As revenge, The Imposter decides to take away his position as student body president. To do so, he disguises himself as an escape room carny and lure presidency competitor Fred into an impossible-to-escape room with a VIP ticket, allowing him to freely disguise himself as Fred and direct a smear campaign against Chad that poses him to actually be an old man disguised as a teenager, having even nearly convinced Kevin until he learns about the play at the retirement home.
  • "Trading Faces" reveals that Ms. Knight was The Imposter the whole time, meaning that his evil scheme actually started all the way in "The Search for Super Guy"; playing in to Hiromi's desire to meet Super Guy again, earning her trust and manipulating her into finding out about the true identity of not just Super Guy, but also (and especially) Hamster and Gretel, indirectly causing a rift between her and Kevin, and possibly also affecting her former love of creating art. This cumulates in "Miss Direct" as The Imposter convinces Hiromi to disguising herself as a fake supervillain in order to get an interview with Hamster and Gretel. This not only causes Hiromi to lose Gretel's trust, but also turns out to be another front of The Imposter to acquire Hamster and Gretel's DNA samples, and uses a DNA analyzer to find out the true identity of Gretel, as he plans to expose the DNA results on live television, all in the name of revenge for them thwarting his prior schemes.
    • Even when the jig is up in "Trading Faces", this won't stop The Imposter from proceeding with his revenge scheme, as he then kidnaps Hiromi, and creates fake Hiromi decoys to be put in dangerous situations in order to keep Hamster and Gretel busy whilst he announces the DNA results. He even accounted for Kevin trying to save Hiromi at the TV studio, as he forces Hiromi in a disguise of himself, Veronica Hill in a Hiromi disguise, and disguises himself as a camera to throw Kevin off.
• Flashback: Most of the villains in the series tend to have these, but The Imposter especially takes pride in explaining how he got to execute his schemes through long and complicated flashbacks. When Hiromi tells through flashbacks how she got to expose The Imposter's secret identity and save that of Gretel in "Trading Faces", The Imposter appears to be more upset that she just took his shtick.
• Master of Disguise: The Imposter's gimmick. He's able to disguise himself as a little boy and another supervillain with realistic bodysuits, and he can force others into similarly immaculate disguises.
• Walking Spoiler: Because of his nature as a Master of Disguise, it's impossible to discuss him and his actions without dipping into spoiler territory, for his every appearance is a plot twist. This applies three-fold with his third appearance that turns him into the antagonist of not just a self-contained episode, but a whole half season-wide story arc.

Voiced by: Brock Powell

• Absurd Phobia: He's afraid of pressing buttons with his left hand, so getting a splinter in his right one will stop him from evildoing until it is removed.
• Disproportionate Retribution: People won't buy his "divorce cakes" so he decides to use them as weapons to shoot people as revenge.
• Edible Ammunition: He's got two cannons that fire cake batter, a giant one meant to drown the whole city, and a smaller, handheld one.
• Even Evil Has Standards: He thinks people who don't turn their phones off during a movie are eviler than him.
• Evil Chef: He bakes cakes and is a supervillain.
• His Name Really Is "Barkeep": His surname is "Baker", meaning his supervillain name is just a longer version of his real name.

Voiced by: Richard Kind

• Faux Affably Evil: Pretends to be a friendly shopkeeper... until someone gets in his way. He is very honestly happy to show off his impossible bottles though.
• Gadgeteer Genius: A Double Subversion. Season two reveals he bought his Shrink Ray but added the ability to unshrink things himself. Micro Manager, the inventor, wishes he had known that.
• Laser-Guided Karma: He shrinks items into a bottle until he eventually gets shrunk into one.
• WTH, Costuming Department?: A lot of people In-Universe think his mask is poorly designed.

Voiced by: John Hodgman

• Didn't Think This Through: He had his robot built by teenagers working for minimum wage and didn't think they'd cut corners.
• Shrink Ray: His backstory is that he made one with the intent of making tiny onion rings in order to impress the boss of Tall Burger, but he forgot which end the shrink ray fired from, shrinking himself down to approximately 2 feet tall.

Voiced by: Richard Ayoade

• Bullet Seed: An uncommon case where it's neither seeds nor bullets, but he can spit out pearls in a bullet-like fashion.
• Gemstone Assault: He uses pearls as if they were bullets.
• Hard Head: His clam head is so hard that Gretel's punches do nothing against it.
• I Just Want to Be Loved: He was already feeling lonely before his mutation happened. His motivation for his evil plan to make more clam-headed mutants is to increase his dating options.

Voiced by: Seth Green

• Heel–Face Turn: Pulls one off in the finale.
• The Load: He has super strength, but only in one foot, and lacks all of FistPuncher’s other powers, including invulnerability and flight (so he has to be carried everywhere). Combine this with a crippling fear of clouds and it’s clear that he doesn’t bring much of anything to their partnership.
• The Right Hand of Doom: His right leg is huge compared to his left one. However, it's his normal-sized left foot that has super kicking abilities.

Voiced by: Grey DeLisle

• Living Clothes: Her second evil scheme had her make a pants monster, made from fabric splashed with toxic waste, and fueled by a lot of static electricity.
• People Puppets: Her big project in fashion school is this, a fabric that allows her complete control over someone else's movements.

Voiced by: Alfred Molina

• The Dreaded: Merely saying his name caused the audience of an intergalactic gladiator tournament to flee in terror.
• Evil Counterpart: He serves as one to Hamster, given that they were both once normal rodents before being given the ability to speak from different cosmic-related events. However, while Hamster is a superhero and says less, Mordros is a supervillain and talks a lot. And while Hamster chose to use his powers to help people, Mordros only sought revenge on those who separated him from Mrs. Maybank.
• Evil Is Bigger: In addition to being the biggest villain in the narrative sense, he's also one of the bigger villains physically, being over twice the height of the show's teenaged cast members. Gretel only comes up to his knee.
• Final Boss: He is the last villain for Hamster and Gretel to take on in the Season 2 finale.
• Greater-Scope Villain: He doesn't appear until the last episode of Season 2, but he is the greatest evil in the show's cast if you don't count the "much, much, much greater evil" one of the aliens mentioned in the last seconds of Season 2. He isn't even alluded to until the final moments of Season 1, but he's the reason why the aliens have been making superheroes and supervillains.
• Meteor-Summoning Attack: His first major appearance on the show has him sending four peculiar meteoroids towards the Tri-State Space Program's space station, as a means of testing Hamster and Gretel.
• Names to Run Away from Really Fast: If the "Mor" part of his name isn't a sign that he's a bringer of doom, then his title of "the Annihilator" will clear all doubts.
• Redemption Rejection: An attempt to reach out to him is made by bringing to him the one person he cares about. He instead decides to continue with his plans while also taking her for himself by freezing her. He mocks the heroes for attempting to psychoanalyze him instead of stopping him.
• Start of Darkness: He was once a normal chinchilla named Nutmeg, until an accident involving an experimental rocket sent him to another dimension, where he gained superpowers. He has since laid waste across the universe, preparing to get revenge on Earth.
• Tiny-Headed Behemoth: Under the armor, he is a mutated chinchilla with a humanoid body that's at least 10 feet tall, but he's still got the proportionally tiny head of an average-sized chinchilla.
• Unseen No More: He finally makes a physical appearance in the Season 2 finale after being mentioned throughout the season and having his voice be heard.
• Uplifted Animal: He's a chinchilla uplifted to a humanoid form that can speak. Besides the anger over how he became that way, he's also upset about being sapient enough to feel that way at all.
• Villain Song: With such a musical show, it's only fitting that the Final Boss gets a song of his own. He gets one where he explains just what he does, simply called "I Annihilate".

Voiced by: Stephen Kramer Glickman

• Dishing Out Dirt: He can generate mud when he sings.

Voiced by: James Adomian

• Atrocious Alias: Rodney Thunderpants is a rather ridiculous name, especially compared to Gretel near immediately coining the name "Lightning Rod". He concedes the point when he asks to be referred to as Lightning Rod.
• Evil Luddite: His goal is to destroy all modern technology so the world will go back to a simpler age.
• Lightning Can Do Anything: Crushed under a cell phone tower, which was struck by lightning once, and then three more times, gave him electrical powers.
• Shock and Awe: As a result of being struck by lightning while under the rubble of a cell phone tower, then being struck by lightning three more times, he gained electricity powers.

Voiced by: Betsy Sodaro

A school coach teacher, who uses cheerleader girls to steal things.

• Creepy Gym Coach: A coach that hypnotizes teenagers to commit crime.
• Ink-Suit Actor: Looks like Betsy Sodaro in gym clothes.
• Irony:
  • As she's defeated, Coach Haggerty proclaims in rage that she hates cheerleaders... yet she's a cheerleading coach who mind-controls the cheerleader squad and relies on their acrobatic skills to rob banks.
  • Additionally, the mind control used on the cheerleaders breaks with loud, jarring, rhythmic sounds or music. In other words, the cheerleaders are "defeated" with cheerleader music. Sounds like Coach Haggerty didn't quite think everything through.

Voiced by: Eric Bauza

• Abnormal Ammo: One of his two weapons is a cat shaped gun that strips the fur off live cats to fire sticky hairballs. When he's defeated the cats get their revenge.
• Fake Muscles: After he's defeated his suit deflates, revealing a much more average physique.
• Irony: He modeled himself after his favorite villain, Man-Cat, but he's actually more of a dog person.
• Meaningful Name: He's a Cat themed villain who Copies another (fictional) cat themed villain.
• Weaksauce Weakness: Double subverted. At first it seems like he had copied everything from Man Cat except his weakness to water, but as Gretel points out, his suit containing exposed wiring means that he's indeed just as weak to it as his comic book counterpart, and he's soundly defeated when his suit ends up short circuiting.

Voiced by: Thomas Sanders

• G-Rated Drug: The stolen horse DNA-mixture Ned uses to increase his skill in sports is similar to how some athletes use illegal steroids to improve their performance.
• Ink-Suit Actor: He looks almost identical to the actual Thomas Sanders...minus the hooves and tail, of course.
• The Mind Is a Plaything of the Body: After his transformation, he associates with a gang of semi-sentient horses and could barely muster enough willpower to resist eating peppermints off the ground.

Voiced by: Keith Ferguson

• No Celebrities Were Harmed: Is based visually and vocally after Regis Philbin.
• They Called Me Mad!: Asks the rhetorical "Who's the insane one NOW" as he's growing a mutant eel to take vengeance upon his former employers... and then concedes that he clearly is, before laughing maniacally.
• Ultimate Life Form: His mutant eel, which is infused with the DNA of the most powerful eels in the world. He dubs it "The Ideal Eel", but Gretel has problems with the name as it doesn't talk, fetch or even sit.

Voiced by: Liza Koshy

A lady that kidnaps popular dogs.

• Acrofatic: Despite her girth, She shows off some impressive martial arts skills during her fight with Hamster.
• Freudian Excuse: The Dognapper was once a pet influencer like Kevin, but soon she fell out of fame and became addicted to it, stealing popular dogs hoping some of their fame would rub off on her. Kevin points out how he is on his way to becoming just like her.

Voiced by: Richie Moriarty

A living bouncy castle that tramples on people's birthday parties.

• Animate Inanimate Object: The "party pooper" is a sentient bouncy castle, that doesn't even know how it got alive in the first place. Turns out that two weeks prior, the superpower-granting aliens were in the process of bestowing a pair of kids with superpowers as the male alien spilled some orange juice, causing them to bestow a nearby bouncy castle with superpowers instead.
• Freudian Excuse: After becoming alive, the bouncy castle has become aware of all the years children have been mercilessly bouncing on him (some having neglected to clip their toenails for weeks, others wearing shoes with cleats). So, as revenge, it proceeds to trample their birthday parties the same way.
• Hidden in Plain Sight: Appears as a normal bouncy house.

Voiced by: John DiMaggio

• Affably Evil: As long as you're not a rodent, that is. After trapping Kevin alongside Hamster, he put Kevin back in his van and left an apology note and 20 dollars.
• Cyborg: Both him and his cyborg rat minions are half-mammal, half-robotic rat trap, due to an incident with a Merging Machine.
• Ninja Pirate Zombie Robot: Pi-Rat, his most powerful minion, is half of this trope's name, being a pirate robot rat.
• Punny Name:
  • X-Terminator is a pun on "exterminator" and Terminator, as befitting a cyborg exterminator.
  • Pi-Rat is a multi-layered pun as X-Terminator explains, being a pirate-themed robotic rat with a Pi symbol on it's chest, and he makes pies too.
• Revenge: He blames rodents for his cyborg condition, and wants every rodent on Earth to pay for that.

Voiced by: Khary Payton

• Small Role, Big Impact: Despite only appearing in the first few minutes, his ray would accidentally enlarge the size of an otter that would wreck havoc in the city

Voiced by: Brock Powell

• Attack of the 50-Foot Whatever: Is a Giant Baby
• Brick Joke: The Giant Baby threw the Action News van into the air during his rampage. It doesn't come down until the end of the episode, where it almost landing on Abuelita forces Hamster and Gretel to use their superpowers to save her.
• Freudian Excuse Is No Excuse: Despite being dumped by Veronica and losing multiple mayoral elections, it does not excuse him rampaging the city.
• Gone Horribly Right: After losing another mayoral election and getting dumped by Veronica Hill to a younger, taller candidate with more hair, Bob Enfantiberg decided to brew a concoction that would make himself taller and younger and grow his hair back. The potion made him too tall and too young, but did nothing for his hair.
• Prophetic Names: His last name has "Enfant" in it and it foreshadows his transformation into a giant baby.
• Who's Laughing Now?: Bob Enfantiberg was last seen ranting on the podium that he'll outdo all the taller and younger candidates he lost to, before being removed from the stage. As a Giant Baby he declares the city is his and rampages.

Vocal effects by: Dee Bradley Baker

Voiced by: Cree Summer

• Anti-Villain: Although her goal is to ruin the school's plays, Christine is ultimately a harmless and friendly person.
• Prophetic Names: The bantam turned out to be a person named Christine De Poulet Both poulet and bantams are chickens, hinting that Christine is the culprit
• Start of Darkness: Ages ago, the school's football team used to be the Eastside Bantams, with the eponymous bantam as the mascot, but during the mid-90s, the team was renamed to the Eastside Plumbers, and the mascot was replaced as such. The Bantam mascot did not take this well and put a curse on the school as it left.
• Surrogate Soliloquy: Christine talks to a cardboard cutout and even married him.

Voiced by: Camryn Grimes

A DJ themed villain.

• Ambiguous Situation: We're not sure if she is an actual supervillain that the Imposter disguised as for the day or if she is entirely made up by the Imposter.

Voiced by: Karalynn Dunton

• All There in the Manual: Her last name isn't spoken in the show, but was revealed in a video posted by Dan Povenmire.
• Attention Whore: The entire reason she's trying to tear Hamster and Gretel's reputations down is purely for social media clout.
• Badass Normal: She's not an over the top supervillain like the others in the show, but she did more damage to Hamster & Gretel than any of them through social media.
• Bad Influencer: She's a despicable social media influencer, using her platform to spread lies about Hamster and Gretel because controversy gets views.
• Crocodile Tears: After Gretel makes a video of herself persuading Belle to stop making fake videos, she takes advantage of this and sheds fake tears from another doctored video of Gretel insulting her.
• Hate Sink: Where to start? She makes fake videos of Hamster and Gretel to make them into despised pariahs for clout. She even takes great pleasure in them being almost arrested along with Kevin. All these make her a truly despicable character in the show.
• Jerkass Has a Point: Regardless of her smear campaign, she was not wrong when showing the video of Hamster and Gretel resisting an arrest attempt, which is a real life crime.
• Justice by Other Legal Means: After being exposed as a fraud, she was arrested for an unrelated crime; unlicensed cosmetology.
• Laser-Guided Karma: After everything she did to ruin a nine-year-old girl and her pet hamster's reputation by framing them for many crimes, Belle loses all her followers thanks to Bailey showing everyone her unedited footage, and is promptly arrested for unrelated crimes.
• More Hateable Minor Villain: Unlike villains such as the Destructress and FistPuncher or Professor Exclamation, whose motivations and goals range from simple but understandable to grandiose, Belle's only reason for antagonizing Hamster & Gretel, and ultimately railroading them into being thrown in jail, is for the sake of internet clout.
• Signing-Off Catchphrase: In-Universe Example. She ends her videos with "Like and subscribe."
• Vague Age: Her exact age isn't specified, but she looks like she could be a student from Kevin's school.
• Villain with Good Publicity: She gets a ton of well-liked views from everyone after she ruins Hamster & Gretel's reputation. Of course, everything comes crashing down thanks to Bailey.
• Would Hurt a Child: Well, not physically, but she manages to torment Gretel, who's only nine years old, with so much clout to the point where she breaks and is about to turn herself, her hamster, and her teenage brother over to the police.
• Wounded Gazelle Gambit: Right after Gretel makes a video calling her out on framing both her and Hamster, Belle posts one of her own with herself shedding fake tears so the public will hate the duo even more.

Voiced by: Diedrich Bader

• I Just Want to Be Special: His villainous motivation is that he just wants people to see his movie and hates that people are seeing Larry the Magic Boy instead of his films.
• Meaningful Name: His name's Arthouse and he makes Arthouse films.

Voiced by: Isaac Robinson-Smith

• Foul Waterfowl: He's a supervillain with goose wings, and is able to rile up geese.
• Hate Plague: His honk is capable of making every goose in the Tri-State Area aggressive. But that's the limit to his control over geese.
• Little Bit Beastly: He's got goose wings coming out of his butt. Aside from that, he appears completely human.

Voiced by: Rachel Dratch

• Animal-Themed Superbeing: They are a rat-themed Classy Cat-Burglar, complete with a rat mask, claws, and a tail.
• Classy Cat-Burglar: Except in their case, they resemble a rat instead of a cat.
• Helicopter Parents: It's revealed that the Rat Burglar is the mother of Bailey's spelling bee rival Xavier. She frequently used invisible ink to help her son win various competitions. Hamster even straight-up calls her one when he and Fred trap her in the end.
• Knight Templar Parent: What else can be said about a woman who has committed multiple crimes for the sole purpose of helping her son cheat at elementary school competitions?
• Samus Is a Girl: They wear a masculine-looking suit and a mask that changes their voice so that Gretel thinks the Rat Burglar is a man. The criminal ultimately turns out to be a woman.
• Secret Identity Vocal Shift: Rat Burglar's mask pitches their voice down so that no one can find out her true identity.

Voiced by: Sarah Sherman

• Burning Rubber: When she shifts into turbo mode, she leaves two trails of fire in this fashion.
• Money Dumb: She mentions 35 failed start-ups and 3 bankruptcies before her "Hasty Delivery" service where she steals products and rapidly delivers them to people using her powers.
• Super-Speed: She can run so fast she can't be seen by the naked eye, and this is her default running speed. Once she shifts into turbo mode, not even Hamster and Gretel can catch up with her.
• Suspiciously Similar Substitute: Prior to Crimson Haste, there already was a super-fast female villain clad in a reddish color, who made a prior minor appearance in "Superhero Sibling Rivalry" and even appeared on the Rogues Gallery poster among several other major villains, but sadly went unnamed.

Voiced by: Isaac Robinson-Smith

• Art Attacker: His main weapon is a pair of wrist-mounted paint shooters.
• Brown Bag Mask: He wears one as his main mask, because he is anonymous.
• Multilayer Façade: He wears a skull mask under his paper bag, and in his debut, he wore a colored paper bag over his regular one.
• No Celebrities Were Harmed: Not in appearance, but in name structure and in actions. The suffix of his name and his secret identity being a banker evokes Banksy.
• Wallpaper Camouflage: He makes his debut in a costume that blends in with the mural he defaced.

Voiced by: Diedrich Bader

• Clock Punk: He has this aesthetic, having a mustache like clock hands, and pendulums for arms.

Voiced by: Danielle Threet

• Blue Means Cold: Her coat, hair, eyeshadow and lipstick are all shades of blue, and she's all about coldness.
• Cryo-Prison: The patrons of Ice Queen Ice Cream who have a taste of her Eïysze ice cream are frozen stiff and made a member of her entourage of frozen statues, her "Kül Krü".
• Foil: To La Cebolla. Both are food based super villains with their own Villain Song that recieves something extraterrestrial and also managed to take out Hamster. La Cebolla was already a famous actress that lost her role while Inga grew up poor but became successful.
• Freudian Excuse: As her villain song explains, her obsession with coolness stems from her upbringing as a dairy farmer in the mountains of Switzerland, and the cool skiers that would regularly tease her when all she wanted was to be one of them and not a dairy farmer.
• Freeze Ray: One of her weapons is a gun that shoots balls of Eïysze, freezing them on contact.
• An Ice Suit: She's wearing a winter jacket all the time, even outside in a summertime heat wave.
• Literal Metaphor: She has an obsession with coolness, referring to both the aesthetic quality and the low temperature definitions.
• Magic Meteor: The power source of all of her freezing weapons and freezing ice cream is Eïysze, a supernatural ice-like substance that crashed into the Swiss alps from space. Anyone who ingests it is frozen and quantum entangled with the Eïysze, so they won't thaw until the Eïysze is melted.
• Villain Respect: She briefly respects Gretel for showing some edge in explaining how she was able to defeat her by throwing the Eïysze into the sun. This ends after Gretel celebrates with a "Yay, I'm edgy!"... and then quickly regained once Gretel sabotages her hover vehicle.
• Villain Song: She has a techno song prepared to explain her backstory, entitled "Ice Queen".

Voiced by: Joanna Hausmann

• Achilles' Heel: She can't be able to suck her ray on people who are already super negative.
• Crusading Widow: She married five times, with every single one of her spouses promptly devoured by a tiger.
• Expy
  • La Sombrerona's name is similar to that of the Guatamalan legend and Mexican boogeyman, El Sombrerón, who is notable for wearing an overly large hat.
  • She also resembles famous Mexican ghost La Llorona due to being a very pale skinned woman with long dark hair and a white gown.
• Freudian Excuse: Every single one of her spouses preferred having fun over doing their job, and were promptly devoured by a tiger, so La Somrerona vows revenge against happiness in general.
• The Hilarity of Hats: La Sombrerona wears the hats of her five husbands stacked on top of each other. When they are removed, they reveal an antenna on her head, the source of her happiness-draining powers.

Voiced by: Brock Powell

• A.I. Is a Crapshoot: He was once an ordinary nanobot, but he soon gained sentience and became a bully.

Voiced by: Lexie Shoaibi

• Alliterative Name: Her civilian identity is Julie Jennings.
• Anti-Villain: The sole reason she went on a rampage, and targeted museum director Melvin Horsegobble in particular, is because he used to be her intern and pushed her into a tar pit by accident years ago, only to then take all the credit for her findings. Gretel and Bailey find themselves siding with Jennings when the truth is revealed, and she even wins in the end, with the museum being handed to her and Horsegobble being demoted to coffeeboy in the cafeteria.
• Gorgeous Gorgon: She's shown to be rather attractive post- and pre-fossilization, with her backstory slideshow showing off her self-admitted amazing hair and an accidental swimsuit picture. The Gorgon part comes from her snake-like fossils on her hair.
• Human Popsicle: While not frozen per se, she got stuck in a tar pit for thirty years until the aliens bestowing her with superpowers allowed her to free herself.
• Necromancer: She is able to bring dinosaur skeletons to life.
• Portmanteau: The reason for her nickname is because, much like Medusa's snake hair, Julie gained Prehensile Hair made of dinosaur bones.

Voiced by: Tessa Skara

• Anti-Climactic Unmasking: Subverted. She first takes off her mask to reveal a normal and attractive face with purple hair. Then she reveals that the hair is actually spider-like legs that hide her Extra Eyes.
• Blinded by the Light: She has presumably been hiding out underground and operating at night for a while. When Kevin first shows up with his flashlight, she reacts with a lot of pain, which isn't helped by her having six eyes in total.
• Body Horror: Her powers manifested pretty horrifically. While she can look totally normal, sans purple hair, her hair locks are revealed to be spider-like legs growing out of her head that hide Extra Eyes.
• Corrupted Character Copy: She is this to Spider-Man - Similar to him, her powers came from an encounter with a spider, and can shoot webs to go from place to place. However, while Spider-Man is a hero who attempts to do the right thing, Itsy Bitsy is a supervillain who robs and steals.
• Extra Eyes: She has six eyes in total, with two pairs stacked on top of her normal ones.
• Fusion Dance: Merged with a spider when the aliens gave her powers.

Voiced by: Jane Lynch

• Anti-Villain: She's not even a villain at all, and only chased after Kevin, Gretel, and Hamster because they caught her on camera and didn't want to be exposed out of fear of being shunned like she was after her accident.
• The Hermit: Chose to stay in the bayou after the incident that merged her with a tree and her cooking supplies. She decides to return to society after Kevin and Gretel tell her she's become an icon in her former town and have been cashing in on her infamy without her.
• Supreme Chef: Her homemade waffles are delicious.

Voiced by: Cree Summer

• Evil Is Petty: She wants to take away all sound so she can have peace and quiet.
• Evil Librarians: She is a sinister nameless librarian who hates loud noises.
• Evil Old Folks: She is an elderly lady who uses an invention for sinister (but petty) purposes.
• Freudian Excuse: Her parents were an opera singer and a foley artist, meaning she grew up surrounded by noise, fueling her desire to silence the tri-state area.
• No Name Given: Her name is never revealed.
• Stage Whisper: She talks in a hushed tone similar to this, due to her dislike of loud noises. Except when she sings.

Voiced by: Debra Wilson

• Black and Nerdy: A rare evil version of this trope, as she is a scientist who is able to duplicate herself and commit crime.
• Feed It with Fire: Thermokinetic force feeds her self-duplication powers, so fighting Gretel resulted in her going from four bodies to fifty.
• Ink-Suit Actor: She resembles her voice actress Debra Wilson but wider.
• Logical Weakness: Heat is an essential component of her mitosis, so when Gretel drops her in a freezing pool, she reforms into a single person.
• The Narcissist: Self-admitted while explaining her backstory. In fact she specifically says she altered her genes to make herself more narcissistic.
• Professor Guinea Pig: She altered her own genes to make her self stronger, faster and more full of herself, in addition to making herself able to self replicate under the right conditions.
• Self-Duplication: True to her name, she has the power to make copies of herself. Her expositing and the synchronicity of the clones imply that she retains a single consciousness across a great many bodies.
• Surrounded by Idiots: Part of her motivation is the fact that she has this opinion of her colleagues.

Voiced by: Kyle Mooney

A slacker villain with poor time management skills, a vendetta against time itself, and the ability to turn into bread flakes.

• Advance Notice Crime: He announces his crimes on the city's timekeeping devices in advance and provides a time for when he'll do the crime. However, he's always late, showing up just when the titular heroes let their guard down.
• Attention Deficit... Ooh, Shiny!: He never makes it to his scheduled crimes on time because he always gets distracted along the way, showing up hours late, right when anyone staking out lets their guard down. Gretel uses this trait against him by anticipating his route, and staking out at a bakery that he'd doubtlessly show up at.
• Freudian Excuse: He became a villain because his father was a clockmaker who loved his clocks more than him, and this is also why The Flake wants to ruin everyone's ability to tell time.
• Food-Based Superpowers: Because of an industrial accident that merged him with a croissant, he's gained the ability to turn into a cloud of bread flakes.
• Logical Weakness: Like a bowl of cereal that's been left uneaten for too long, he gets soggy when exposed to milk, reducing him to a bread flake puddle with a head.
• Mad Doctor: He claims to be a surgeon, but Fred doubts this claim.
• Meaningful Name: In addition to the whole "bread flake" thing, a flake is someone who doesn't do what is promised or scheduled. The Flake always announces a time when he'll do his crimes, but he'll always run late.
• One to Million to One: How his bread flake powers work. He can turn into a cloud of bread flakes, fly around, and reform elsewhere.

Voiced by: Andrew Santiago and Joel "The Kid Mero" Martinez

• Mind Over Matter: As long as they are touching hands in a hi-five, they can use telekinesis, which they mainly use to turn whole buildings upside-down.
• No Celebrities Were Harmed: They appear to be based off the “Property Brothers”, Johnathan and Drew Scott.

Voiced by: Carlos Alazraqui

• A.I. Is a Crapshoot: They're AI-powered robotic crossing guards who decide to enslave humanity over poor street-crossing habits.
• Job-Stealing Robot: Made to steal the jobs of crossing guards, like Mertha, Gretel's favorite crossing guard.
• Pulling Themselves Together: They fall apart after taking a fall, but their internals are held together by cables that retract when this happens.

• Emotion Eater: It's fueled by Hiromi's bottled up negative emotions. Once she lets them out, it shrinks back to normal size.

Voiced by: Ming-Na Wen

Voiced by: Kimberly Brooks

• Big Creepy-Crawlies: She can supersize a pair of dust mites to do her bidding.
• Dance Battler: She's a capoeira practitioner.
• Freudian Excuse: The reason why she turned to villainy was because she was never allowed to indulge her love of antiques during childhood because it conflicted with her parents' postmodern minimalist tastes. Now that she's an adult she wants to make up for lost time by taking every antique she has in her sight.
• Smoke Out: She has a dust sprayer, allowing her to create a cloud of nanodust to blind her opponents or make a getaway.
• Villain Song: Like several villainesses before her, she got her own song with "A Dust Mite Might".

Voiced by: Bobby Moynihan

• Corrupted Character Copy: He is essentially an evil version of the Kool-Aid Man.
• Edible Ammunition: He can shoot pouches of Slamonade from his hands.
• Logical Weakness: Because he is a liquid, Gretel deals with him by slamming hundreds of sponges into his bottle.
• Made of Indestructium: His bottle is unbreakable.
• Murder Water: He's an antagonistic sentient drink.
• There Was a Door: As befitting an evil Kool-Aid Man, he isn't one to use doors. Nor is he one to use elevators. He always makes his entrances by jumping into an area from underneath, breaking the floor instead of a wall.
• Was Once a Man: He was originally human, but 40 years ago, he got turned into Slamonade as a publicity stunt.
• Would Hurt a Child: It was the cool kids who cost him his job, so he decided to get revenge on them, and from the look of things he was going to brutally beat them up...or worse!

Voiced by: Lance Krall

• Bad Influencer: He's an internet-famous prankster, and a massive jerk who wants revenge against the whole city.
• Prank Gone Too Far: His backstory is that he's the victim of one that led to his face being covered with permanent blue ink.
• You Are What You Hate: He hates pranks, yet is a prankster.

Voiced by: Sebastian Conelli

• Freudian Excuse: His father loved classic cars so much, he never paid attention to him, whether he was behaving or misbehaving. He turned himself into a car to get his respect, and he won't stop upgrading himself until he gets it.
• Logical Weakness: His humanoid upper body is pretty big, so no matter what vehicle he is, there's no roof over his head and no windows to his sides, and whenever he has a windshield in front, it doesn't cover much. He's completely exposed to the elements, so forcing him through a carwash causes him a great amount of pain.
• Lucky Charms Title: His chest logo says "CarL!" and he says the exclamation point adds intimidation. The credits list him as just "Carl" though.
• Merging Machine: He bought one from Doofenshmirtz, which is what caused his half-man half-car status.
• Tank-Tread Mecha: His vehicular forms have his humanoid upper body sticking out of the driver's seat (except for his firetruck form, where he's in the aerial platform), like some sort of car-taur.
• Transforming Mecha: Because of all the car parts he has stolen, he can turn himself into any kind of vehicle, even motorcycles or trains. He has a humanoid form too.
  Humanoid, motorcycle, hot rod or truck,
  Don't know what you're running from, but he is running amok!
• "Well Done, Son" Guy: All he wants is his father's pride. He almost got it, but he was one antenna away from "looking good", but he got encouragement to keep trying, which is very much appreciated.

Voiced by: Brett Gelman

• And I Must Scream: He's been trapped in a horrible movie since the 80s, forced to live every second of it, with no hope of escape due to how nobody would rent such an awful movie.
• Fish out of Temporal Water: He's been trapped in a videotape since 1987, he has no idea what the internet is, and he still thinks video stores and VCRs are commonplace.
• Mad Scientist: What else would you call a man in a lab coat and goggles who invented a device that can turn him into electricity all so he can have some pizza from a slightly-too-far restaurant?
• Shock and Awe: He can turn himself into pure electricity.
• Technopath: He can take control of any technology he finds himself inside. Not much he can do inside a VHS tape, but once he gets out...
• Trapped in TV Land: He's been stuck in a VHS tape of the movie "Tubular Teens Go Tropical" for over 30 years.

Voiced by: Tom Kenny

• Attack Drone: He attacks using a legion of drones, shaped like eighth notes.

• Karma Houdini: She gets pardoned for her actions because Fred really needed her student council vote.
• Spider Mech: Her attack drone resembles a spider.

Voiced by: Beck Bennett, Meli Povenmire and Michael Cimino

• Cyborg: The trio's DNA was used in the creation process, meaning these are partially organic.
• Heel–Face Turn: Dave taught Robot Kevin self-worth, and that inspired him to change for the better.
• Robot Me: They are robotic doubles of the trio.

Voiced by: Tim Robinson

Voiced by: Chris Diamantopoulos

• Jerk Jock: He's a villainous weightlifter who destroys gyms because he's lashing out at those who mocked him for skipping leg day.
• Repulsive 'Roids: G-rated variant. An obvious lie followed by a Cutaway Gag makes it clear his musculature isn't just the result of weightlifting, but also a Bolgylvanian protein powder not meant for human consumption.
• Top-Heavy Guy: From the waist-up, he's gigantic, but his legs are thinner than Gretel's.

Voiced by: Dan Povenmire (male alien), Joanna Hausmann (female alien)

• Brown Note Being: When they finally meet the heroes they're only seen as silhouettes of shifting amorphous blobs from behind a screen, claiming that looking at them directly will make the earthlings' heads explode.
• Cloudcuckoolander: Albeit a (seemingly) rare villainous example, the male alien has signs of this. Aside from giving Gretel's hamster superpowers and skipping over Kevin completely, he has given La Cebolla the power to talk to onions, and also provided disco lights for an impromptu outdoors homecoming dance, which not only consumes a lot of power on their UFO, but was not even part of any of their experiments. Hell, when he was about to give two other kids superpowers, the alien spilled his orange juice, accidentally giving a bouncy castle superpowers instead, and just left it like that as he leaves. All while touting in the Theme Song Takeover that they're not giving powers to anyone willy-nilly... at the same time as when he's giving a fire hydrant superpowers.
• Deadpan Snarker: The female alien, given some of the male alien's exploits as detailed above. Some of her snarks and nagging leads to the male alien remarking immaturely:
  Female alien: "You know, flashing those lights is using a lot of power..."
  Male alien:"YoU kNoW, fLaShInG tHoSe LiGhTs Is UsInG a LoT oF- that's what you sound like!"
• Enigmatic Empowering Entity: They're the ones that gave Hamster and Gretel their powers, dictating they use them for good. Mysteriously, they also gave powers to two other people, and implore they specifically use them for evil, and are responsible for various other villains like La Cebolla getting superpowers as well. At the end of "Exclamation Strikes Back" they reveal that they were creating supervillains to prepare Hamster and Gretel for a greater threat.
• Jerk with a Heart of Jerk and Jerkass: They tell Kevin that he was never supposed to have powers, to the point of mocking him after his bad day with Hiromi, even Gretel's expression displays sorrow, given the aliens' mistreatment of him.
• Omniscient Morality License: Their seemingly random actions and creating supervillains for Hamster and Gretel to fight are revealed to be because their computer calculated a specific series of circumstances needs to defeat Mordros the Annihilator.
• Super-Empowering: The aliens can bestow anyone – and "anything'' – with superpowers, then tell them to use those powers for good or evil.
• The Voice: We never see them and only get to hear their voices. "Who's Afraid of Mordros the Annihilator?" reveals the reason why is because their true forms might cause anyone's head to literally explode.