10 Weirdest TMNT Comics Villains of All Time, Ranked

The world of the Teenage Mutant Ninja Turtles is chock-full of weird characters. Most of the series’ central characters are far outside any accepted norms, from humans who became animalistic mutants to animals with human traits. Mutagen is everywhere, and it’s not responsible for half the weirdest villains the turtles have faced.

Aliens, demons, cyborg mutant zombies, and more abound in the pages of Teenage Mutant Ninja Turtles. Characters grow and change, adapting to new eras and different formats. Some started in comics, appeared on TV, and returned to print with lasting changes, while others were used once and never spoken of again. These wild villains from the Teenage Mutant Ninja Turtles could be some of the weirdest of all time.

10 Mr. Null Works With Demons

The world of the Teenage Mutant Ninja Turtles is weird enough with the Mutanimals, aliens, mad scientists, and robots the turtles deal with daily. Introducing the business suit-wearing Mr. Null and his armies of actual demons based on traditional Eastern mythology makes things much weirder. Loki, a trickster god of Norse myth, and Grendel from the legend of Beowulf also exist in TMNT lore, but Null’s demons are far more prevalent.

Some of Null’s forces are weirder than others, but many are gross-looking demons with terrible intentions. He sometimes teams up with other masterminds to sew chaos on Earth, but thankfully, the Turtles are up to battling such supernatural threats. Null was initially little more than an infernal business executive, but as his evil deeds grew in scale, so did his demonic power. A female version of the character also appeared in the IDW continuity with a similar design.

9 Roberto Arzaluz Is A Mexico-Exclusive Mutant Lobster

Roberto Arzaluz was a human before becoming a villain of the incredibly powerful Mexican Las Tortugas Ninja. He owned a nice little restaurant until the turtle variants battled their world’s Bebop and Rocksteady, spilling ooze into the building’s water. The water got onto the lobster dinner Roberto was preparing for a group of gangsters, and he changed forever.

The mutagen turned Roberto into a giant bulletproof Lobster Man. He used the new power for evil and became a foe of Las Tortugas Ninja. His human-to-mutant transformation isn’t unique, but unlike Bebop and Rocksteady, his was a freak accident. Unlike Baxter Stockman, he didn’t become a particularly good villain. He’s mostly a weird character from a forgotten era, though a new character called Stanley Stobbs adapted Roberto’s tale for a new audience.

8 Slash Is Not A Turtle

Slash is turtle-like, but one of his most popular variants is decidedly not a turtle. He’s appeared across many eras and iterations of Ninja Turtles, including different comic publishers and animation studios. While one adaptation changed his background to make him Raph’s pet turtle, he's also been a massive alien who happens to look like the Teenage Mutant Ninja Turtles.

In his earliest appearances, Slash is shown as a freaky space-snapping turtle whose home was destroyed by people from another world. He traveled to Earth with Krang and met the turtles by complete coincidence. His shell, claws, and fangs made him too cool to stay a villain for long, and he eventually died a hero instead of the weird villain he started as.

7 Scul And Bean Share A Brain

Scul and Bean are some of the strangest villains the Teenage Mutant Ninja Turtles have ever faced. Two gross-looking aliens in the service of the equally off-putting insectoid warlord Maligna, Scul and Bean are two creatures who seem to share one brain. They’re stereotypical henchmen, but their unique connection makes them especially memorable.

One of the duo can shoot bombs out of the big hole in his head, which is pretty risky considering how dumb they are, even as a duo with full brain capacity. Maligna’s choice to send the duo as her envoy calls her intelligence into question, as the turtles and their Mutanimal compatriots can handle the bug-like brutes with relative ease whenever they rear their ugly heads.

6 Bellybomb is a Bit of a Nightmare

Some of the Teenage Mutant Ninja Turtles’ greatest villains are incredibly memorable and visually striking, and then there’s Bellybomb. He’s basically a big mouth with one eye, two horns, arms and legs, cool boots, and a jacket, and he’s absolutely awful. He’s incredibly versatile for a weird little intergalactic criminal.

In the comics, he’s a scammer and an associate of Krang, and in the 2012 animation, he was voiced by legendary comedian Charlie Murphy. Bad breath is a hallmark of his character, and his rap sheet was incredibly long before he hitched a ride to Earth to fuse Kang onto the Shredder. He’s a real piece of work and quite hard to look at, making him one of the strangest villains the Turtles ever faced.

5 Wyrm Is Hard To Kill

Wyrm is a strange mutant in that it is actually a collection of many mutants put together to make one new monster. He’s a massive group of flatworms that, after exposure to the mutagenic ooze, turned into a hulking monster with a serious grudge against humanity. He longs to suck people's bones out and proves formidable in a battle with a spider-headed alien and the combined might of the turtles.

Wyrm has appeared in several forms throughout the Turtles’ time at different comic publishers, and he also showed up in the 2012 animated series. Readers might expect a mutant flatworm to be buglike or remotely worm-like. Still, Wyrm takes more inspiration from dragons, as his name suggests, and presents a serious physical threat while also being incredibly hard to kill.

4 Dead-Eye Is Half Bike

Manx, AKA Verminator X, is a Public Enemy reference and a mutant cyborg weasel who betrayed his mentor, Donatello. He also built zombie cyborgs in the future. The whole setup is pretty wacky but not as wacky as Manx’s strangest and goofiest Thanasoid henchman. Dead-Eye may sound like a Western villain or gunslinger, but he’s much weirder than that.

Dead-Eye’s cybernetic head is a big eyeball, which is not the strangest thing about him. He’s also half motorcycle. Like a nightmarish punk centaur, his bottom half is a motorbike. Sometimes, he can shift the bike into a plane, enabling him to fly around and cause problems for the Turtles as a member of Manx’s army and the murderous Gang of Four.

3 Monsterex Is Every Monster

Monsterex is truly a sight to behold. When Krang’s mutation technology blasted the Turtles’ television in the middle of a classic monster movie, the conglomerate Monsterex was created. It’s a two-headed mashup of classic Universal monsters, and it carries all their combined power and fury.

The two heads of Monsterex are a wolfman and a vampiric Frankenstein’s monster. The werewolf half is wrapped in mummy bandages, sewn onto Phantom-like garb, and an elegant cape over the Frankenstein half. Its right hand and left foot sport the green scales of the Gil-Man, and its whole body is vulnerable to sunlight. Without that weakness, Monsterex could’ve been too much for the Turtles.

2 Vid Vicious Is A Half-Mutant Television

Named for the legendary Sex Pistols bassist Sid Vicious, Vid Vicious’s very existence is a commentary on television and modern media. He was just a guy minding his own business in the woods until satellites and toxic waste fell from space as he threw his TV in the trash.

The incident turned him into a mutant television-human cyborg. An influx of radio waves gave him incredible, reality-warping powers, but also drove him completely mad. He could pull people into televisions and project things out of them, and he used that power to kidnap April O’Neil. He tussled with the Turtles, but they beat him, and he scurried off into the unknown.

1 Krang Is Incredibly Strange

Lord Krang was originally reptilian, though he also has roots with the Utroms, an alien race from the Mirage era of the Teenage Mutant Ninja Turtles. He coalesced in the classic cartoon, largely due to his strangeness. While his android body is huge and intimidating, the villain himself is just a weird ball of fleshy goo in the middle of the android’s stomach.

He rules Dimension X with a gooey fist, and his base in the Turtles’ dimension of residence is a big dome with an eyeball on top. Krang is an evil genius and architect of ruin for the Turtles and their world, but his aesthetic tastes and appearance are undeniably weird, even in a world full of mutants. He’s one of their strangest enemies and also one of the most dangerous they ever faced.