Secret Chaser

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• Ah! My Goddess: Sayoko noticed how there is something off about Belldandy, and goes to great lengths to uncover her secret. Of course, since Belldandy is a Goddess who Cannot Tell a Lie, she simply tells Sayoko the truth. Sayoko never believes her and continues her schemes.
• A particularly frustrating example occurs in Bleach with Tatsuki, who spends a good portion of the story fully aware that something supernatural is going on with her two closest friends, but is kept Locked Out of the Loop even when she directly confronts them about it.
• In the Saiyaman Saga of Dragon Ball Z, Videl spends several episodes filling this role trying to expose Saiyaman's secret identity.
• Tamagotchi!: Uwasatchi becomes one in episode 5b, whose premise involves her chasing after Lovelin to figure out what her secret identity is, reaching the point where she attempts to peek at the inside of the truck Lovelin is always in whenever she travels.

• The Astro City story "Knight In Shining Armor" plays it very darkly with the character of Irene Merriweather (a Lois Lane Expy), who wants to expose the security identity of the superhero Atomicus so badly that she pulls off immense acts of Superdickery, like refusing to stop looking (and putting herself and other people in danger as entrapment bait) when the man she believes to be Atomicus (her own coworker) gets his house blown up by the Mafia because they got wind of her investigations. At the end of the story Atomicus is so fed up of her that he exposes his real identity, gives Irene a "The Reason You Suck" Speech, and leaves Earth forever.
• Batman:
  • Vicky Vale in Silver Age Batman comics.
  • Tim Drake used his abilities as this to convince Batman that he should become the next Robin, though initially he was hoping to just convince Bruce that he needed a Robin after his downward spiral in the wake of Jason's death and didn't want the job for himself.
• Daredevil: Ben Urich to the titular hero.
• The Disney Mouse and Duck Comics have some superheroes... So of course there's people trying to find out their identities:
  • Super Goof should be easy to figure out, given he's Goofy in long red underwear and blue cape... But as everyone is in denial, only his nephew Gilbert, his grandmother and Mickey know. Hilarity Ensues every time someone tries to find out, with the Beagle Boys once being more willing to believe Captain Hook was Super Goof rather than Goofy (later in that story, when a recently repaired supercomputer flat-out reveals that Goofy is Super Goof, they and O'Hara conclude it was still damaged from Super Goof's earlier sabotage, and they declare Tinkerbell as a more likely candidate).
  • Paperinik's secret identity as Donald Duck is defended only by a Domino Mask... And his well-known abilities as a Master of Disguise who has openly disguised himself as Donald multiple times (indeed, an early story before said abilities became well known had the entire city sure he was Paperinik, at least until they saw a robotic Paperinik flying over them while Donald was in the open). Thus many a one-shot character tried to find out, with Gladstone and especially Scrooge joining the fun from time to time, only to be fooled by Paperinik's tricks (one of which had Paperinik being supposedly hit by radiations that temporarily gave him a beard impossible to shave-and Donald going out of his way to hide his chin just to have Scrooge take a fake beard from his face).
• A Marvel issue of Dynomutt had Dyno grilled by a TV gossip columnist about Blue Falcon's secret identity (Radley Crown), of which Dynomutt keeps mum. The columnist has an easel with the faces of five men whom she believes is Blue Falcon, Crown among them, and she's determined to find out. After the heroes take care of some crooks, the columnist sprays blue paint on Blue Falcon's face then schedules a meeting with the five suspects. She is thwarted as the faces of the other suspects were painted blue as well.
• Fables did this twice; once when a reporter thought all the folks of Fabletown were vampires; and planned to "out" them to the world. The second time was with Thorne, later subverted because he's a Fable himself.
• Family Force V: Citlalli‘s mother, desperate to pay the bills, promises her editor to do the impossible and report on the Moon Troopers’ secret identities. Citlalli resolves to help her and soon correctly suspects that Maise might be connected to them.
• PS238: A school full of kid superheroes in their civilian secret identity disguises also includes the extremely paranoid Cecil Holmes, who is convinced his school is full of disguised aliens.
  • Semi-subverted in that Cecil turns out to be a metahuman who can detect other metahumans and that was what was fueling his paranoia. Ironically, he never manages to spot the actual alien at the school, Prospero.
• One of these neighbours sicced an occultist on the Fantastic Four in one issue, mistaking them for witches.
• Ultimate Spider-Man (2000) played with this. Peter's classmate, Kenny "Kong", was typically displayed as the dumb jock type. One day, while lying in his bedroom, he was able to put together the coincidences and realized Peter was Spidey. None of his classmates believed him.
• Superman:
  • The Silver Age Lois Lane and Jimmy Olsen would occasionally act this way around Superman, as would Lana Lang around Superboy.
  • In Superboy (1949) #93 "Lana Lang's Superboy Identity Detection Kit!", Lana creates the eponymous kit to try to prove Superboy is Clark Kent.
  • Superman Takes A Wife has an increasingly suspicious Golden Age Lois setting up an automatic video camera in Clark's favorite storeroom. After getting the film revealed, though, every frame is fogged up somehow…probably by getting exposed to intense X-Rays, Lois guesses.
  • Played for black comedy in a one-page story in an old Superman comic: Clark is reading a book at the Daily Planet when suddenly Lois Lane falls from a window. He rescues her without changing his clothes as Clark. Then she smugly tells him this was the only way she could make sure Superman was Clark Kent. Next panel we see another reporter talking to Clark, again reading a book:
    Clark, have you seen Lois?
    Yes... she fell out of a window.
  • In World's Finest (1941) #71, Lois sees Clark Kent switching too Superman by chance. Clark and Bruce Wayne swap secret identities in order to mislead her, and they are so effective that Lois goes from thinking that Clark is Superman to believe that Bruce is posing as Superman to guess that Superman is posing as Bruce to decide she couldn't care less.
  • The Great Supergirl Mirage introduces Pre-Crisis Dick Malverne grew up at the Midvale Orphanage during the same time that Kara Zor-El/Linda Lee/Supergirl did, and he was constantly trying to prove she had super-powers. In Young Love, he revealed that he always knew Linda was Supergirl, but after a while he decided to keep it a secret.
  • In The Girl with the X-Ray Mind, Dick Malverne becomes convinced that Lena Thorul is Supergirl, and he comes up with an elaborate and ridiculous scheme -revolving around blowing explosives up inside his own home- to "expose" Lena's secret identity.
  • In Action Comics #361, a boy thought Linda Lee was Supergirl, and he pretended to be Kryptonian to goad her into revealing her secret identity.
  • In Adventure Comics, Nasthalthia "Nasty" Luthor — Lex Luthor's evil niece — enrolled at Stanhope University as a student, hoping to lure Supergirl out into the open so her uncle could kill her. Several issues later she is convinced that Linda is Supergirl and follows her to San Francisco, where both begin work as junior reporters for K-SFTV as she tries to out Linda/Kara. In Demon Spawn she even tries to out Supergirl while the Kryptonian heroine is trying to get her out of a burning building. "Nasty" doesn't stop hounding Supergirl and harassing her secret identity until Crypt of the Frozen Graves, when Linda quits her job a leaves for parts unknown.

• Superman: Played for laughs. In "The Superman's Hunt for Clark Kent", Superman temporarily creates the "Clarence Kelvin" due to becoming an amnesiac. After getting his memories back, "Clarence" has a bit of fun letting Lois find out his "secret", giving her permission to reveal it. When an aghast Lois replies she could never, ever, betray Superman's confidence or put him in danger, Superman replies it is not an issue because he will simply adopt a new secret identity which nobody will know about, making Lois wonder why she wasted her time trying to discover his secret.

Crossovers

• In Hail to the King (Thuktun Flishithy), Asuka doesn't know that Shinji is Zone Fighter, but suspects he's got some kind of big secret that she's determined to ferret out.
• Hands Of Fate: After Korra starts to suspect that Peter/Takuya might be Spider-Man, she's intent upon proving it to herself... and tends to go to some pretty extreme lengths, such as Earthbending and launching stone plates at him or asking highly invasive personal questions.
• Hanging Ten Saga: Fin becomes determined to figure out why monsters keep popping up after his encounter with Humungousaur during "Kickin' It Old School".
• My Ideal Academia:
  • Yu/Mount Lady wants to learn more about Shirou's past so she can help him work through whatever issues have turned him into a Martyr Without a Cause. However, she tries not to force the issue too hard, wanting to respect her ward's boundaries.
  • Endeavor obsesses over Archer after witnessing him destroying a forested hill. After noticing Shirou's resemblance to Archer, he starts using his influence to forcibly unearth his past and make Nezu agree to letting him fight Shirou one-on-one.
• Tales of My Lantern Academia: Emerald Dawn: After overhearing Izuku giving the Oath, Katsuki becomes obsessed with figuring out the source of his "fake Quirk" so he can expose him to the world and smash the source of his power, all because he's enraged by Izuku's success.

Danny Phantom

• The Facing the Future Series has Mike Harris, a Kid Detective from Elm Street Middle School who likes investigating strange incidents, and becomes fixated on figuring out what Danielle is hiding.
• Phantom Pains: "Whiteout" opens with the Guys in White trying to figure out Phantom's human alter ego.

Kill la Kill

• In Cellar Secrets, Satsuki and Nui both become this. Initially, they're just trying to discover the titular secret; after learning about the existence of Ryuuko, their goals shift to discovering everything they can about how that situation came about in the first place.

Miraculous Ladybug

• Chloé's Lament: Death and Changes: Alya decides that the best way to "prove herself" as an Intrepid Reporter is by figuring out the Secret Identities of Red Queen and Cheshire. She's so dead-set upon this that she refuses to be deterred by Mayor Sabine declaring that she's going to outlaw any exposure attempts — in Alya's eyes, that's just a time limit, convincing herself that she can't be prosecuted if she spills the secret before it's officially made illegal. The fact that they don't want Hawkmoth or anyone else to learn who the heroes are is completely lost upon her.
• Exposed uses this to set Adrien and Alya up as Foils. While both wanted to know Ladybug's Secret Identity and were frustrated by her insistence on keeping it hidden, Adrien understood why his partner was so concerned. Alya, by contrast, gleefully outs her bestie upon witnessing her detransforming, only caring about all the attention this draws to her blog.
• Leave for Mendeleiev:
  • Alya is determined to figure out Ladybug's Secret Identity, heedless of how this might screw over the young superheroine. One of her primary defenses for her behavior is that "most American superheroes" have revealed themselves; therefore, she insists that Ladybug should do the same... ignoring how most does not equal ALL. Since they aren't classmates or friends here, Marinette regards her as an incredibly dangerous and reckless Wild Card who does not care what impact such a reveal would have, so long as she gets her story.
  • Adrien/Chat Noir also feels entitled to Ladybug's secrets, due to their partnership and his belief that they're meant to be together. Despite having all the same concerns repeatedly spelled out to him, he simply doesn't give a damn what Ladybug wants or how she feels; it's all about what HE wants.
  • All this is highlighted by Alya's first akumatization into Lady Wifi. She mistakenly 'exposes' Chloé as Ladybug's alter ego; Chat Noir proceeds to gleefully harass Ladybug about how "everybody knows now", openly calling her Chloé and 'Chlohoney'. Following the fight, he even stands outside the closet Ladybug ducked into to detransform, telling her that it's pointless to hide and telling her to just come out already. It takes seeing Chloé outside while knowing Ladybug's still hiding in the closet for him to finally grasp that Lady Wifi was mistaken... and at no point does he acknowledge that he did anything wrong.
• Miraculous Two Weeks has Alya start to suspect that Adrien might be Cat Noir. She eventually confronts him, but backs down when Marinette shows her a picture of Adrien standing with Chat Noir.
• Volpimania: Prior to the story's events, Lila spent several weeks trying to figure out the secret identities of all the heroes.

My Hero Academia

• Erased Potential: When Izuku starts secretly training with Aizawa, Katsuki immediately figures out that his favorite punching bag is hiding something, and sets out to find out what. At one point, he outright attacks Izuku demanding to know why somebody is attempting to kidnap him.

Power Rangers

• Power Rangers GPX:
  • In Episode 6 of Supercharged, Ritchie Metoxen becomes obsessed with figuring out just who the Rangers are. However, after they save his life again, he decides to drop it, thinking that figuring out who they are would be betraying the heroes.
  • Hitomi's friend Gina also tries to figure out their secret identities, though this doesn't last as long as Ritchie's arc.

RWBY

• Emergence: Aaron spends much of Aliens Among Us trying to confirm his suspicion that Team RWBY are, in fact, the real RWBY and Refugees from TV Land.

Star Wars

• The Desert Storm:
  • Quinlan becomes one in Remembrance. He breaks into Obi-Wan and Ben's quarters in order to find out more about Ben's past, and finds Ben's old lightsaber. The one he used during the Clone Wars. The one everybody and their apprentice picked up at some point. Since Quinlan is a very gifted teenage psychometric, this ends very badly.
  • Master Mierme Unill and Padawan Taria Damsin are introduced as these, having come from the Corellian Jedi Temple to investigate the cause of the Jedi Order's recent reforms. By the end of Deliverance, Shaak Ti convinces them to stop digging for information, partly by nudging them in the right direction, partly by warning them that if she notices, Ben will notice and given that Obi-Wan is involved, he will not be pleased — and more to the point, if they're not discreet enough for Ben, they're not discreet enough for those he is after.

• In The Return of Hanuman, Munni noticed that Maruti looks rather different. The other gods were worried that she will expose Maruti's secret that he is actually Hanuman. Fortunately, she didn't even have the will to figure out what's wrong with Maruti.

• Dr. Kornbluth in Splash is intent on exposing Madison as a mermaid to boost his own career, although when he finally succeeds, he regrets his actions and undergoes a Heel–Face Turn.
• In the Richard Donner cut of Superman II, Lois Lane is this in spades, going even so far as to risk killing herself by jumping out a window and later pulling a gun on Clark and firing at him (she loaded the gun with blanks) just to prove that he is Superman.

• Inverted in Harry Potter. The Dursleys know full well that there's a whole world of magical people and creatures hidden from Muggles, and go to absurd lengths to try to pretend it doesn't exist.
• Robert Audley in Lady Audley's Secret goes to extreme lengths to prove the titular character's secret, as he figures out what it is fairly early on.
• Adolin Kholin of Words of Radiance has good enough instincts to know that Kaladin is hiding something, but he can't pin down what it is. He spends most of the book suspicious of him and almost catching him doing something notably superhuman (healing too fast, being too strong, glowing), but never being able to confirm it. When Kaladin finally decides to drop the act and reveal himself as a Windrunner and Knight Radiant, Adolin takes a moment to gloat that he knew something was going on with him.

• Lois Lane in the Live-Action TV series The Adventures of Superman.
  • The first season also had reporter Roger Nixon, who Lex hired to investigate Clark Kent.
• Gladys Kravitz on Bewitched could very well be the Trope Codifier, as she spends the entire series trying (and failing) to uncover the strange goings-on at the Stephens household. Unlike most examples, she doesn't seem to suspect the truth, and instead thinks they're aliens from Venus.
• Sergeant Doakes from Dexter.
  • Detective Quinn becomes one as he starts to get suspicious about Dexter. However, he has secrets of his own and the closer he gets to the truth, the less willing he is to pursue it further.
• Elton Pope (and the rest of LINDA) from the Doctor Who episode "Love and Monsters".
• Mel from Fast Layne.
• Forever (2014): Jo has been trying to get Henry to open up about his secrets pretty much since they met. In the finale, she follows Henry into the subway to try to discover what he's going to do with the pilfered pugio, and thus almost learns of his immortality. She also finds a picture of The Ageless Henry, The Lost Lenore Abigail, and baby Abraham, left behind by Adam, and the final scene is of Jo asking Henry to explain it to her.
• Dr. Denman from H₂O: Just Add Water.
  • In the episode "Something Fishy", Cleo's sister Kim tries to prove that the girls are mermaids.
  • Zane glimpses Rikki's mermaid form in "Shipwrecked" and spends a good deal of time afterwards trying to find the supposed sea monster.
• Hannah Montana: Oswald Granger from the movie, who follows around Hannah Montana and is suspicious of her behavior and wants to find out her secret; to protect her double life, Miley has Lilly pose as Hannah so they both appear together in his presence. Once Oswald finds out Miley is Hannah (she stops her concert mid-performance to reveal her secret to her entire hometown), his daughters persuade him not to tell anyone because they are fans of Hannah themselves, and ultimately quits his job.
• House: Dr. Gregory House does not treat his patients as humans but as puzzles to figure out and if there is a secret, he has to know it, and he will find it. This is true even if he has to break government confidentiality agreements or into houses, to risk people's lives or their self-esteem. If you tell him there's no secret (maybe because you don't know the secret), he will insist "Everybody lies" and double down on his hunt. Often the secret being revealed is the clue that helps him figure out how to save the patient's life, and that is the one good thing that came from it being revealed.
• Tammy Gilroy from I Am Frankie.
• To a certain degree, Dr. Bellows on I Dream of Jeannie, but more so his wife Amanda.
• Jack McGee from the TV show The Incredible Hulk (1977).
• One Monty Python's Flying Circus sketch takes this to extremes by having two women spy on their neighbours with high-tech surveillance equipment.
• Hailey Grimm of The Other Kingdom will do just about anything to discover Astral's secret and just what she's hiding with her unnatural abilities and craziness.
• Phil of the Future: Vice Principal Hackett is convinced that there is something odd about the Diffys. But he is only half right about them. He believes them to be space aliens, but they are actually from the future.
• Power Rangers:
  • In the second season of Mighty Morphin' Power Rangers, Bulk and Skull became obsessed with discovering the Rangers' true identities.
  • Cassidy and Devin in Power Rangers: Dino Thunder were like this too (well, Cassidy chased the secret and dragged Devin along with her). They, like their predecessors, had no idea they were going to school with the heroes until the season finale, where they learn the truth and choose not to reveal it.
• In Pushing Daisies, Oscar Vibinius eventually ends up as one of these.
• Notably absent in Sabrina the Teenage Witch (1996), much to the surprise of everyone.
  • Until Brad showed up.
• This is basically Vince and Dave's job in The Secret World of Alex Mack. When Dave finds out later on his own, he realizes that Danielle Atron and Vince are horrible people and becomes a Secret Secret-Keeper in relation to Alex.
• In early seasons of Smallville, both Lex and Lionel Luthor suspect something is different about Clark, and go to great lenghts to try and discover it. Later on, in the episode "Hydro," Lois Lane attempts to prove Oliver Queen is Green Arrow. Oliver and Clark manage to convince her otherwise by having Clark dress up as the Green Arrow. In the episode "Identity" Oliver repays the favour by pretending to be the Red-Blue Blur when Jimmy Olsen suspects Clark Kent.
• Eugene Jones from the Torchwood episode "Random Shoes" (after his death, Gwen ended up investigating him).
• Luis León from Ultra Violet & Black Scorpion, an antisocial hall monitor and blogger who becomes suspicious of Violet and wants to discover Ultra Violet's true identity.
• In Young Dracula, van Helsing is this to the Dracula family, following the imperative of his family line. Amusingly, he is a woodwork teacher.

• Bob Copper in Mega Man Star Force has this as, quite literally, his job description. When he's not trying to find out who Mega Man is, it's because the police force has tasked him to discover the roots of something weirder.
• Fujimoto the sushi chef seems to be the only one who can see through Octodad's Paper-Thin Disguise.

• George from El Goonish Shive, a comicbook shop clerk who works alongside one of the main characters and was insistently badgering said main character to reveal the backstory of a magical incident that took place near the shop. That is until he abruptly dropped the subject after the main character revealed one of George's assumptions to be wrong and revealing to the audience that the reason for his badgering was to learn something that depended on the assumption being correct and that he didn't actually care for the backstory itself after all.
• Ivan Bezdomny from The Wotch, an intrepid (school) newspaper reporter who was dead set on finding the source of the 'Weirdness' surrounding Tandy Gardens.

• Shin from Sailor Nothing — except that she succeeds and becomes a Sailor herself, and her analytical and research skills become a big asset to the other Sailors.

• The Amazing World of Gumball episode The Secret is dedicated to this trope. While they're locked in the bathroom, Gumball Watterson, thinking they're going to die, admits he's the one who drew a picture in Darwin's book that got him in trouble. Just as Darwin is about to reveal a secret of his own, they are set free. Gumball spends the entire episode trying to figure out Darwin's secret, eventually locking them in the bathroom again to get him to say it. It turns out that Darwin lied when he said a sandwich was great, because it was "just good." Gumball, understandably, is furious that the secret ended up being so trivial.
  • It turns out that that "secret" was a lie. The real secret was that he and Anais accidentally uploaded a clip of Gumball trying to hip-hop dance and destroying his room in the process.
• Hans Rotwood from American Dragon: Jake Long. A teacher of the titular hero, he has an interest in supernatural creatures and is set on proving that Jake is one to the world once he has found out.
• Animaniacs: Every Chicken Boo segment contains exactly one character who is aware that the titular character is in fact A CHICKEN I TELL YOU! A GIANT CHICKEN! This guy/girl tends to get ridiculed throughout the episode (or sometimes kicked out) until Boo's masquerade is stripped away somehow. If the wolf-crier was sent away, he/she returns at this point to say, "I told you he was a giant chicken."
• Atomic Puppet: Joey's nerdy classmate and nosy neighbor, Warren is determined to prove that Joey and his sock puppet Companion Cube are Atomic Puppet.
• In Back at the Barnyard, Mrs. Beady is constantly trying to prove the existence of "talking barn animals".
• Max Gibson in Batman Beyond was this in her first major appearance in "Hidden Agenda", trying to figure out Batman's identity just for fun. Later in the episode she switched her focus to identifying the Jokerz since they had been harassing her. Based on his frequent unexplained absences, his criminal record and other factors, Max incorrectly deduces that Terry (Batman) is one of the Jokerz. After sorting out that misunderstanding (and getting her life saved from the real bad guys), Max becomes a Secret-Keeper.
• In Batman: The Animated Series episode "The Strange Secret of Bruce Wayne", villainous scientist Hugo Strange uses a mind-reading device to find people's dark secrets and blackmail them. This leads to his discovery of Batman's identity, which he tries to sell to some of Batman's enemies.
• The ChalkZone episode "Hole in the Wall" featured Vinnie Raton, who discovers ChalkZone and decides he wants to turn it into a theme park to become rich. Also, the episode "Indecent Exposure" has news reporter, Terry Bouffant, discovering ChalkZone and dedicating her life to exposing it to the public. Her obsession even unsettles Vinnie at one point.
• Danny Phantom: Jazz in "My Brothers Keeper" grows suspicious of Danny's behavior, then eventually learns of his ghost alter ego, but decides to let her brother tell her when he's ready and becomes a Secret Secret-Keeper.
• Denzel Crocker of The Fairly OddParents! is constantly out to prove the existence of FAIRY GODPARENTS!.
• Dipper Pines from Gravity Falls is obsessed with solving the mysteries of the titular town.
• Roger a.k.a. 'Pink-Eye' from Grossology is obsessed with proving that Abby and Ty are Grossology agents and later with becoming one himself.
• Hiromi from Hamster & Gretel becomes one in mid-Season 2, determined to find out who Super Guy is, as well as his connection with Hamster and Gretel.
• Dib knows that Zim is an alien out to conquer Earth in Invader Zim. Unfortunately, despite constantly trying, he can't convince anybody else (except his sister Gaz, but she doesn't care).
• Lt. Mitch Kellaway in The Mask (1994) movie and the animated series is both this and the Inspector Javert. Not so much in the movie where Stanley does do illegal things with the mask, such as robbing a bank (he just happened to do so just in front of the goons).
• In the first season of Mia and Me, Violetta seems to want to learn the secret of Mia's book, although by the second half of the season she seems to have lost interest. In the second half of the second season, she learns Mia's secret after obtaining a piece of the gem from her bracelet, which transports her to Centopia whenever Mia goes there.
• Alya Césaire of Miraculous Ladybug opens the "Ladyblog" and, at least at first, is determined to discover Ladybug's true identity (completely unaware that Ladybug is her best friend). She eventually agrees to stop doing this (probably helps that she gets recruited to Ladybug's team as "Rena Rouge"), but continues with her research to try to figure out Hawk Moth's identity. Ironically it's because Alya stops doing this that Ladybug DOES entrust her with her identity not long after, because the stress was risking strain on their friendship and she was having trouble with the burden of her identity alone so she opted to tell Alya the truth and accept her as her confidant.
• Mr. Hinkle on the My Pet Monster animated series isn't aware that Max has a pet monster, but he does know that Max had some kind of wild creature with him and intends to find out what it is so he can call the authorities and have it taken away.
• Candace Flynn from Phineas and Ferb, the older sister of her two Child Prodigy brothers whose crazy inventions only she witnesses: by the time she fetches their mom, it always disappears by some crazy coincidence.
• In Ready Jet Go!, Jet's next door neighbor Mitchell is suspicious of his behavior and tries to find proof that the Propulsions are aliens. Mindy, the only one aware of this, is constantly sneaking up on Mitchell while he's spying, which he finds uncomfortable.
• Principal Covert in Sadie Sparks is constantly trying to find proof of the various magical events in Harmony, and strongly suspects that Sadie and her friends are mixed up in them. Since she's actually part of a secret government agency, a lot of time is spent making sure her superiors think she's a Windmill Crusader.
• In the South Park episode "The Coon", Eric Cartman spends most of the episode trying to find out who Mysterion is. He finally succeeds in having him unmasked when he convinces him that villains would continue to threaten the town unless he revealed himself. But the audience doesn't find out who it was (all he does is lift up his mask while still keeping the hood on; since most of the characters have similar designs, all anyone can tell is that it's a male child in Mr. Garrison's class) until a later episode. It was Kenny and he is effectively immortal; waking up the next day after he dies and no one remembers his death. Also everyone figures that The Coon is just Bruce Vilanch.
• Mandy from Totally Spies! has acted like this a few times, though the situation is usually solved by Laser-Guided Amnesia. She is the Alpha Bitch in the main characters' class who seeks to cross them wherever she can.
• In Ultimate Spider-Man, Mary Jane Watson, aspiring journalist, seeks to discover Spider-Man's true identity.
• Edgar Peepleson from Vampirina. He owns a vlog called Weekly Weirdness and is intent on trying to find evidence that monsters are living amongst humans. Vee finds this to be a challenge to her life, and tries to keep her identity as a vampire a secret from him so she doesn't scare anyone.