Foot Clan The
Foot Clan is a
ninja criminal organization that was founded 1,500 years ago in Japan by a ninja named Koga Takuza when he forged an alloy stronger than steel from the stolen sacred totems of his defeated adversaries to fashion a helmet known as the Kuro Kabuto. Among the known members of the Foot Clan are: •
Oroku Saki / Shredder (voiced by
Kevin Michael Richardson) is the ruthless and vengeful leader of the Foot Clan and one of the two main
antagonists of the series. Adopted by the Hamato Clan after the original Foot Clan was defeated, Saki was raised as a brother to Yoshi until spurred by both his unrequited feelings for Tang Shen and learning his true heritage. As a result of an ensuing battle, Shredder was left badly burned and scarred after unintentionally killing Shen, leaving Yoshi to die while stealing away his daughter
Miwa to raise as his child. Upon learning of Yoshi's survival, and later his mutation into Splinter, Shredder vowed a vendetta against him and the turtles. This led to his dealings with the Kraang and ultimately placing his want to kill Splinter over his survival. He does succeed in killing Splinter during the Triceraton Invasion, but the Turtles travel back in time to save Earth and warn Splinter, foiling Shredder's attempt and resulting in him being mortally wounded. Shredder had to subject himself to a refined mutagen to heal his wounds while gaining new power. This results in him becoming
Super-Shredder who is larger with retractable claws in his hands and blades coming out of his back, arms, shoulders, parts of the legs, knees, and feet. He eventually succeeds in killing Splinter a second time by running him through with his mutated arm blades and is ultimately destroyed by Leonardo's katanas. But in season five, Shredder is revived as a zombie by Kavaxas, having lost sense of time while dead and gaining regenerative abilities and telekinesis. While forced to serve Kavaxas, the
Zombie Shredder ultimately played a role in Kavaxas' defeat where he dragged him back to the Netherworld. •
Takeshi / Tiger Claw (voiced by
Eric Bauza) was a Japanese boy who was mutated by the Kraang as a child into a 6 1/2 ft. humanoid mutant
Bengal tiger called Tiger Claw with razor-sharp fangs and claws, heightened smell, and superhuman strength upon coming in contact with a Bengal tiger. He and his sister Alopex subsequently became circus performers and then a pair of dangerous assassins, though she later removed his tail in a rage for making her a criminal as well as the fact that their parents were one of his victims. Since then, he has been planning to have his revenge against his sister for her betrayal as she plans to do the same. He later lost his left eye after his first engagement with the Turtles and ended up in the 1987 cartoon series dimension, but eventually returned and became Shredder's second-in-command. When Tiger Claw faced off against Alopex again, half of his right arm was severed by her and was replaced with a cybernetic arm. During the fifth season, Tiger Claw attempted to use Kavaxas to revive Shredder. However, the attempt nearly started an
apocalypse and Tiger Claw renounced his vendetta against the turtles. •
Chris Bradford / Dogpound / Rahzar (voiced by
Clancy Brown) was a world-famous
martial artist who is secretly a prized member of the Foot Clan, armed with a 400-year-old
katana and owning a chain of
dojos across the country to recruit Foot Soldiers. He mutated into a mutant
Akita called Dogpound as a result of being bitten by Shredder's pet Akita Hachinko, hampering most of his fighting abilities as he attempted to find a means to restore his humanity. Being knocked into a mutagen vat caused Dogpound to be mutated further into a near-skeletal
werewolf form dubbed Rahzar. He has served as Michelangelo's rival ever since he pretended to befriend him to get info on Splinter. After drowning in the season four finale following his fight with Leatherhead, Rahzar was brought back to life by Kavaxas in the fifth season. During the final fight with Kavaxas, Tiger Claw knocked Rahzar into the abyss leading to the Netherworld. •
Xever Montes / Fishface / Mr. X (voiced by Christian Lanz) was an
Afro-Brazilian street urchin who was left to roam the criminal underworld of
São Paulo, eventually being recruited by Shredder after attempting to steal something belonging to him. He later mutated into the mutant snake-head Fishface after touching a
northern snakehead in a
Chinatown marketplace. Following the mutation, he wears a water-breathing rig and mechanical legs developed by Baxter Stockman. Fishface is always paired up with Rahzar despite their rivalry and he serves as Raph's primary rival on the battlefield. Fishface eventually leaves the Foot Clan in season five at the start of Kavaxas' apocalypse plans. •
Baxter Stockman (voiced by
Phil LaMarr) was a
child prodigy who tried proving his brilliance at a
science fair at school by presenting a
volcano with real lava, which ended up burning down the gym and getting him
expelled. After being caught using his Mousers to steal from the Purple Dragons, Baxter was eventually brought into Shredder's services and reversed-engineered much of the Kraangs' technology before he briefly escaped. After being recaptured upon his lab being found by Dogpound, Stockman was outfitted with an explosive mutagen collar by Dogpound to hinder any further treachery. After failing a few more times when making worthy mutants for the Foot Clan that included a duck mutant, the collar is triggered by Shredder and Stockman is mutated into a mutant
housefly that calls himself Stockman-Fly. As a side effect, Stockman develops a taste for chocolate bars and spits on them before consumption. He later placed in charge of mutagen experiments. While Shredder is bedridden in the aftermath of the Triceraton invasion, Stockman oversees Shredder's mutagen intake and creates Antrax and Scumbug to assist him in an attempt to replenish the Foot's wealth. He is finally restored to his original human form by Donatello's retro-mutagen during the final battle against Super-Shredder. •
Ivan Steranko / Rocksteady (voiced by
Fred Tatasciore) was a Russian arms dealer and artifact collector with a gold tooth and a diamond right eye, who is an old friend and business partner of Shredder. However, a falling out resulted in Steranko being mutated into a mutant
black rhinoceros called Rocksteady after being pushed into a mutagen vat filled with black rhinoceros DNA. At the end of Season 5, Bebop and Rocksteady decided to be "superheroes" and moved to a different state. •
Anton Zeck / Bebop (voiced by
J.B. Smoove) was a professional thief in a high-tech suit with a purple X-ray visor, and invisibility function and other high-tech gadgets. Hired by Steranko to steal the Kuro Kabuto, Zeck was later mutated into a mutant
common warthog called Bebop after being shoved into a mutagen vat filled with common warthog DNA. At the end of Season 5, Bebop and Rocksteady decided to be "superheroes" and moved to a different state. •
Chrome Dome (voiced by
Nolan North) is a ninja android in a dark ninja outfit (which resembles Chris Bradford's full ninja outfit) armed with a plasma sword and whip. Chrome Dome was originally built by the Kraang to keep the Foot Clan sufficient with their invasion plan. •
Hattori Tatsu (voiced by Michael Hagiwara) is a blind swordsman operating in Japan who was taken in by Shredder at a young age and became his right-hand man. Following Super-Shredder's death, Tatsu planned to succeed Shredder by obtaining the Kuro Kabuto and had some competition from Karai, who was once his pupil. As Tiger Claw and Rahzar claim the Kuro Kabuto, Tatsu's soul was drained from his body by Kavaxas. •
Shredder Mutants (all voiced by
Kevin Michael Richardson) are mutant
clones created by Baxter Stockman from the DNA of Shredder and different
crustaceans, all three of them based on Shredder Elite from the
Mirage Comics. They serve as the guards of the Foot Clan's lab. While Mikey fights Baxter Stockman, the others fight the Shredder Mutants. Once Splinter manages to regain his mind, he defeats the Shredder Mutants by kicking them into the giant fan below. In "Meet Mondo Gecko", silhouettes of a second set of Shredder Mutants are seen among the audience during the race. In "Attack of the Mega Shredder!", the Shredder Mutants were re-created and were tricked into the mutagen vat by Bebop and Rocksteady, fusing them into a giant crustacean abomination called the Mega Shredder that went on a rampage in the city before it was destroyed by the Turtle Mech. •
Shiva Shredder is a large four-armed clone of Shredder who was created from the DNA of Shredder and a crab which also gives him a crab shell. •
Claw Shredder is a clone of Shredder who was created from the DNA of Shredder and a lobster, giving him lobster-like claws and a tail. •
Mini Shredder is a miniature clone of Shredder who was created from the DNA of Shredder and a shrimp, giving him a shrimp-like mustache and tail. •
Mega Shredder is a giant hybrid of the Shredder Mutants. •
Foot Soldiers are an army of ninjas loyal to Shredder, making up the soldiers of the Foot Clan. •
Footbots are an army of robot Foot Soldiers created by the Kraang Hive Mind to strengthen the Foot Clan, replacing the human members over time. The Footbots can adapt to any move and have retractable arms as well as sporting retractable fabric wings for gliding. •
Elite Footbots are the stronger versions of the Footbots that were created to strengthen the Foot Clan during its civil war with Karai's faction. They resemble Chrome Dome, except for the fact that they wear metal
kasas on their heads. •
Foot Cultists – The first Foot Cultist was an unnamed homeless man who mutated upon coming into contact with the Super-Shredder's mutagen blood and captured various people to mutate them into
photophobic creatures who wear hooded cloaks. Because of their origins and Shredder-like appearance, the Foot Cultists possess Shredder's genetic memory and act on it when Tiger Claw finds them. Tiger Claw used the Foot Cultists to obtain the Scroll of the Demodragon and the Seal of the Ancients to control Kavaxas in their plans to revive Shredder.
The Kraang The
Kraang are a race of brain-shaped aliens from
Dimension X, piloting robotic bodies called Kraangdroids that are either covered in a blue bodysuit, or not. They are responsible for bringing some mutagen to Earth a thousand years ago. As revealed in "The War for Dimension X", the Kraang are Utroms that are psychically controlled by Kraang Prime resulting in the Kraang Hive Mind. As they became extensions of Kraang Prime's will with trace remnants of individuality, they all address one another as "Kraang", and they have not mastered English and communicate in redundant speech; for example, "Kraang, destroy the ones who call themselves 'the turtles' when that which is the signal is the signal that I give". The Kraang also have enemies in the form of the Utroms whom Kraang Prime could not place under mind control, and the Triceraton Empire for destroying their homeworld. The Kraang appeared to have mostly been destroyed during the events of "Annihilation: Earth!" Among the known Kraang are: •
Kraang / Kraang Prime (voiced by
Roseanne Barr in seasons 1 and 2, Rachel Butera in season 3) is a 25 ft. brain-shaped alien who is the leader of the Kraang and one of the main antagonists of the series. Originally a Utrom scientist, Kraang discovered a mutagen within the Kraathatrogon worms and used his research to evolve into his current state while using his gained psychic powers to enslave most of his species and rename them after himself. Kraang Prime is later destroyed in the episode of "Annihilation: Earth!" by the Triceratons when they shoot down the Technodrome which sunk beneath the harbor. •
Knight / Kraang Subprime (voiced by
Gilbert Gottfried) is an Utrom turncoat with a robotic left eye, a huge scar, a blue tattoo across his right eye, and a robotic claw on his left front tentacle. Serving as the Kraang's master spy, being the only one among them to fully master the human language, Subprime poses as
Irma Langinstein (voiced by
Kate Micucci) who is April O'Neil's best friend in high school. Before joining the Kraang willingly and being revealed to be Bishop's brother as well as a hero among their kind, Subprime was originally known as Knight. It was also revealed that he is related to the 1980s Krang. While killed in "Annihilation: Earth!" by the Triceratons upon the Technodrome being shot down over the harbor, Subprime was last encountered by the Turtles months before his demise in "The War for Dimension X" and "Trans-Dimensional Turtles". •
Ms. Campbell (voiced by
Cassandra Peterson) is a research scientist from the World Wide Genome Project who takes an interest in April O'Neil and is revealed to be an unpiloted Kraangdroid. •
Kraang Soldiers (both voiced by
Nolan North) are the generic foot soldiers of the Kraang. They mostly move around in the Kraangdroid bodies and the "Normans" which they use to blend into human society, yet they still retain their redundant speech patterns. •
Biotroid is a
Yeti-type bio-mechanical suit with powerful arms, blades on its chest, and butt-mounted cannons. •
Dracodroid is a two-headed cyborg dragon creature created by the Kraang that serves as their mode of transportation. •
Irma-Bots are androids who resemble Kraang Subprime's Irma Laginstein disguise. They were based on the designs by the Utrom Rook.
Dimension X creatures The Kraang have used various creatures that come from Dimension X to help them in their plots. Among the Dimension X creatures are: •
Rock Soldiers are a duo of nearly identical 20 ft. humanoid rock monsters from Dimension X with regenerating abilities who serve the Kraang as guards. •
Traag is a 20 ft. lava-spewing rock monster from Dimension X with regenerating abilities who is in service to the Kraang. He first appeared in "TCRI", where he was brought by the Kraang through a portal that connected TCRI to Dimension X. He proved to be a challenge to the Turtles, so Leatherhead ended up dragging him through the portal back to Dimension X. In "Showdown", Traag was seen guarding the portal when the Kraang upgraded it with a force field. When the Turtles tried to destroy it, they drew the attention of him and the Kraang, so Leonardo used the laser to disintegrate Traag. In "Into Dimension X", Traag teamed up with Granitor to attack the Turtles near the Kraang's facility in Dimension X. However, they were both defeated by Michelangelo in his "savage" suit when he used his voice to break apart the part of the cliff both rock monsters were on. •
Granitor is a 20 ft. blue fire-spewing rock monster from Dimension X with regenerating abilities who resembles Traag (but is pale pink) and is in service to the Kraang. He first appeared in "Into Dimension X", where he teamed up with Traag to attack the Turtles near the Kraang's facility in Dimension X. However, they were both defeated by Michelangelo in his "savage" suit when he used his voice to break apart the part of the cliff both rock monsters were on. •
Kraathatrogons are a race of 100 ft. alien worms from Dimension X with antennae used as riding reins that the Kraang "milk" for mutagen. •
Long-Tongue Worms are small alien worms from Dimension X. •
Rocktopus is a giant octopus/insect-like alien from Dimension X that sports a small creature-like attachment to draw in its prey. •
Living Atoms are a group of sentient large atoms from Dimension X that shoot a bolt of electricity. They first appear in "Into Dimension X", where they attack the Turtles until they finally manage to outrun them. •
Bio-Electrical Eyeball is a gigantic sun-size eyeball from Dimension X that shoots electricity at its enemies. It first appears in "Into Dimension X", where it blows up a nearby ship with electricity.
Purple Dragons The
Purple Dragons are a
Chinese-American street gang that has been extorting shop owners for
protection money on the
Lower East Side. They are often in league with the Foot Clan. Among the known members of the Purple Dragons are: •
Hun (voiced by
Eric Bauza) is the new and official leader of the Purple Dragons and a high expert in the martial arts following the Kraang's control over Manhattan being thwarted. He has a rivalry with Casey Jones. •
Fong (voiced by
Andrew Kishino) is the unofficial leader of the Purple Dragons in the first two seasons who is sometimes armed with a butcher knife. He leads the Purple Dragons when Rahzar and/or Fishface aren't around until Hun comes into view. •
Sid (voiced by Andrew Kishino) is a large Chinese-American member of the Purple Dragons who is sometimes armed with an axe. •
Tsoi (voiced by
James Sie) is a mustached Chinese-American member of the Purple Dragons who is sometimes armed with a sledgehammer.
Triceraton Empire The
Triceraton Empire is an empire that is inhabited by Triceratons, a race of
Triceratops-like aliens. Triceratons breathe
nitrogen and the oxygen in Earth's atmosphere can lead to delusions. The Triceraton Empire has been at war with the Kraang for millennia, a conflict that has resulted in the destruction of the Triceraton home world through the Heart of Darkness (a black hole generator) and thus left the Triceratons obsessed with annihilating their enemies by any means necessary, such as destroying any planet that the Kraang want to take over. They are also enemies with the Salamandrians. In the first half of the fourth season, having appeared to wipe out the Kraang in the season three final, the Triceratons replaced the Foot Clan as one of the main villains in the series. Except for Captain Mozar, all the Triceratons have names that start with Z. Among the known Triceratons are: •
Emperor Zanmoran (voiced by
Michael Ironside) is the ruler of the Triceraton Empire, a Triceraton with a more ornate uniform including a cape. Zanmoran is a sadistic ruler, having decreed Earth's destruction due to its Kraang infestation. After the Turtles travel back in time to prevent this, they are captured during their infiltration of the Triceraton Mother Ship, and their efforts impress Zanmoran enough that he orders them to be thrown into the arena. When the Fugitoid is captured during an effort to rescue them, Zanmoran attempts to force him to repair the Black Hole Generator, but he refuses. The Turtles subsequently escape by briefly taking Zanmoran hostage. •
Captain Mozar (voiced by
Michael Dorn) is the Supreme Commander of the Triceraton army with a broken horn and a prosthetic beak, initially introduced as a captain. He is a Triceraton who is a cunning and brutal military commander. He answers only to the Triceraton Emperor and aims to destroy the enemy at any cost. He debuts in "Annihilation: Earth" Pt. 1 where he leads the Triceraton invasion on Earth to destroy it and thus prevent the Kraang from using it as a new homeworld, and employs the Heart of Darkness previously used by the Kraang to destroy the Triceraton homeworld. However, the Turtles escape Earth's destruction and then travel back in time six months to prevent this event from happening. They would eventually cross paths with Mozar during their quest where he was promoted to Admiral for successfully retrieving the first piece of the Heart of Darkness. It is later stolen back by the Turtles during their raid on Emperor Zanmoran's ship. Mozar was later demoted back to Captain by the time he attacked the Ulixes to reclaim the Heart of Darkness fragment. Even though the Skeevix Virus launched at the Ulixes was defeated, his soldiers were successful at reclaiming the two fragments of the Heart of Darkness. •
Sergeant Zog (voiced by
Lance Henriksen) is a Triceraton who serves as a scout for the Triceraton army, who is based on Zog from the
Mirage Comics. He debuts in "Dinosaur Seen in the Sewers!" where he temporarily befriends Raphael. Due to being poisoned by Earth's atmosphere, he is initially delusional, striking at virtually any being he comes across and rambling on about his mission. After recovering his equipment at the
Statue of Liberty, he recognizes Raphael's deception and attacks him before launching a beacon to summon the Triceraton armada to Earth. Left clutching onto a ledge on the Statue of Liberty, Zog refuses Raphael's offer of help and drops from the torch quoting "Long Live the Triceraton Empire". •
Commander Zoran (voiced by
Kevin Michael Richardson) is a commander in the Triceraton army. •
Commander Zorin is the second-in-command of the Triceraton army who assisted Mozar in the attack on Earth. •
Sergeant Zark is a sergeant of the Triceraton army who assisted Mozar in the attack on Earth. •
General Zera (voiced by
Kate Mulgrew) is a female Triceraton that was introduced in the TV film "Half-Shell Heroes: Blast to the Past". She is in command of a Triceraton operation in the Cretaceous period seeking to obtain the rare mineral Chronite and use its time-traveling properties to conquer and plunder various periods. Despite commanding a Triceraton garrison, a force of Robot-
Raptors, and a Robo-
Spinosaurus, she was defeated by the Turtles and their dinosaur allies. Zera is the first known case of a Triceraton female in the series, as all other Triceratons who have appeared onscreen have shared the stereotypical male design. •
Lieutenant Zorg (voiced by
Fred Tatasciore) is an overweight Triceraton who serves under General Zera. •
Lieutenant Zovox (voiced by
Michael Dorn) is a Triceraton that accompanied Captain Mozar to the planet Xaava-Dal. •
Zarus (voiced by
Kevin Michael Richardson) is a Triceraton scientist who accompanied Captain Mozar to the planet Xaava-Dal. •
Zeno (voiced by
John DiMaggio) is a Triceraton warrior who was condemned to the Tri-Arena for not wanting to help Emperor Zanmoran search for the fragments of the Heart of Darkness. Since his imprisonment, he has become a star gladiator; he is thus reminiscent of the 2003 series character Traximus. Zeno fought the Turtles in the arena after giving them advice about their first match, but was later convinced to help them escape due to their shared contempt for the Heart of Darkness/Black Hole Generator. •
Lieutenant Zax (voiced by
Clancy Brown) is a Triceraton who assisted Captain Mozar in reclaiming the two fragments of the Heart of Darkness from the Turtles and later obtaining the final fragment of the Heart of Darkness from the planet Magdomar. •
Triceraton Soldiers (Various Voices) are the foot soldiers of the Triceraton Empire.
Honey Badger Ravagers The
Honey Badger Ravagers are a gang of mutant honey badgers that work for Maximus Kong in an alternate future that is dominated by mutant animals following the detonation of a mutagen bomb. Among the known members are: •
Verminator Rex (voiced by
Nyambi Nyambi) is a honey badger with a cybernetic left eye and a cybernetic left chainsaw arm who is the leader of the Honey Badger Ravagers. He is loosely based on the character Verminator-X from the
TMNT Archie comic series. •
Aviator Ravager (voiced by
Kevin Michael Richardson) •
Eyepatch Ravager (voiced by Nyambi Nyambi) is an eyepatch-wearing member of the Honey Badger Ravagers. •
Grill Ravager (voiced by Kevin Michael Richardson) •
Jock Ravager (voiced by Nyambi Nyambi) •
Leather Ravager (voiced by Kevin Michael Richardson) •
Painted Ravager (voiced by Nyambi Nyambi) •
Ravager Spy (voiced by
Dee Bradley Baker) is the Honey Badger Ravagers' spy. •
Top Hat Ravager (voiced by Dee Bradley Baker) is a top hat-wearing Ravager. •
Honey Badger Ravagers Members (variously voiced by Dee Bradley Baker and Kevin Michael Richardson) are the unnamed members of the Honey Badger Ravagers.
Scale Tail Clan Scale Tail Clan is a group of mutant lizards in an alternate future that is dominated by mutant animals following the detonation of a mutagen bomb. Among the known members are: •
Imperius Reptilicus (voiced by
Keith Morris) is a mutant lizard who is the leader of the Scale Tail Clan. •
Scale Tail Scribe (voiced by
Kevin Michael Richardson) is a mutant lizard and scribe of the Scale Tail Clan who attempts to decipher the map to the Oasis that is tattooed on Mira's arm. •
Scale Tail Clan Members (variously voiced by
Dee Bradley Baker,
Brian Bloom,
Scott Menville, and
Kevin Michael Richardson) is the unnamed members of the Scale Tail Clan.
Other villains •
Snake / Snakeweed (voiced by
Danny Jacobs) was a street thug working for the Kraang as their getaway driver. He was later mutated into Snakeweed, a mutant plant monster upon falling into some plants. •
Vic / Spider Bytez (voiced by
Lewis Black) was a crabby New Yorker in his 40s who was accidentally mutated into a black spider mutant called Spider Bytez after coming in contact with a red spider. •
Dr. Victor Falco / Rat King (voiced by
Jeffrey Combs) was a scientist presumably working for the Kraang on an experiment involving mutagen and monkey DNA. He was later exposed to a neurochemical during an accident that deformed him into a corpse-like state while enabling him to control rats and took on the name Rat King. The explosion in his lab that caused this also took his sight, leaving him blind and enabling him to see through his rats. Falco became Rat King where he sported bandages and a plague doctor outfit. In his first encounter with Splinter, Rat King took control of him. Splinter managed to break free from Rat King's mind control and defeat him, but his rats make off with Rat King's body. In the next encounter, Rat King managed to use a combination of mutagen and a growth serum to enlarge some of his rats. Rat King is eventually killed when Splinter throws him off a ledge in the Undercity. Splinter later hallucinated seeing Rat King when he fell down the same pit. After snapping out of the hallucination, Splinter saw Rat King's skeleton. •
Aristotle is an albino rat who is the Rat King's primary source of visual input. He either possesses or is ascribed greater intelligence than the other rats by the Rat King, who at times acted as though Aristotle were speaking to him. Aristotle is eventually killed in a fight with Splinter. • The
Giant Rats are rats that were created by Rat King upon exposing them to a combination of Mutagen and a Growth Serum that made them 12 ft. long. Rat King named them after Roman emperors. •
Caligula is a giant rat who serves as Rat King's mode of transportation. •
Claudius, Nero, and Commodus are the other three giant rats that are named by Rat King. •
Rat Man Freak (voiced by
Jason Biggs) is a deformed humanoid mutant rat who just appears in "Of Rats and Men". He is a product of Rat King's attempts to create Rat People. •
Justin is a composite mutant that was the result of Karai pushing a button in the Worldwide Genome Project's laboratory that caused a combination of DNA from various animals (examples of the DNA samples seen are a jellyfish, an isopod, an octopus, a cobra, and a house cat) to be poured into the mutagen vat during the Turtles fight with the Kraang. This gave him octopus tentacles for legs, a cobra-like neck, an isopod shell on his head, jellyfish-shaped eyestalks, cat ears, and a cobra-like tongue. •
SpyRoach / Cockroach Terminator is a cockroach that was trained by Donnie to spy on the Kraang with special micro-equipment in "Cockroach Terminator". It accidentally fell into the mutagen vat and mutated with the micro-equipment fused onto it. •
Parasitica Wasp is a giant mutant
parasitoid wasp that mind-controls the Turtles into protecting its egg by stinging them (the mind-controlled victims infect their enemies by biting them). • '''K'Vathrak / Newtralizer''' (voiced by
Danny Trejo) is a fire-belly newt-type Salamandrian in a weapon-upgraded suit of high-tech armor with a huge mouth used to eat the Kraang and was considered dangerous to them. Since the Newtralizer has returned, he has acquired electricity-based power that makes him unstoppable. He is later revealed to be a war criminal, assassin, and old ally of Lord Dregg who has eluded the Salamandrian authorities. •
Squirrelanoids are a group of 9 ft. humanoid mutant
eastern gray squirrels with red skeleton-like skin, glowing green eyes and mouths, and retractable tongues with a secondary head that resembles
Xenomorphs. It was the result of an eastern gray squirrel drinking mutagen from a spilled canister. •
April Derp (voiced by
Mae Whitman) is a rejected deformed clone of April O'Neil who only appears in "The Kraang Conspiracy". April Derps (who are regular April clones) are destroyed by the original April with a psychic attack. •
Fungus Humungous (voiced by
Fred Tatasciore) is a humongous one-eyed mutant mushroom that can grow smaller mushroom spawns and release spores that cause people to see their worst fears. It was created when a mutagen canister fell near it. •
Antonio / Pizza Face (voiced by
John DiMaggio) was an Italian pizza chef who ran Antonio's Pizza until he ingested mutagen thinking that it would be a good pizza topping. As a result, he turned into a mutant pizza with pizza-controlling abilities. At the end of the episode, he is seen alive in Mikey's pizza box. •
Ho Chan (voiced by
James Hong) is a powerful martial artist during China's
Shang dynasty whose martial arts powers were so incredible that they were mistaken for sorcery. Chan is based on Lo Pan from the film
Big Trouble in Little China. •
The Creep is a regenerating 8 ft. mutant
swamp monster made of mud and moss with the clothes of a sun-beaten scarecrow, superhuman strength, and vines used as whips growing out of his body. It was the result of Leonardo vomiting the mutagen medicine on the banks of a stream. Parts of Creep are eventually fused with the Son of Snakeweed to form Creepweed. •
The Finger (voiced by
Jesse Ventura) is a hunter and animal collector wearing a
shrunken head around his neck that he refers to as his mother. His name is attributed to an
extra finger he has on his right hand. •
Mom Thing (voiced by
Renae Jacobs) is a Kraang/human abomination that was made from the DNA of a Kraang and the DNA of April's mother Mrs. O'Neil where it had a copy of her thoughts. • The
Dream Beavers are a family of oversized humanoid
North American beavers from the Dream Dimension with dream-infiltrating abilities who sought to take over Earth after they were brought to the dreams of Earth's people when a physicist named Bernie was working on a dimension-traveling machine called the Dream Plug. Outside the Dream Dimension once Casey destroyed the Dream Plug, they are the size of normal beavers. Not pleased with the results, the Dream Beavers return to the Dream Dimension. •
Dire Beaver (voiced by
Robert Englund) is the purple-furred leader of the Dream Beavers with glowing red eyes and a bomb symbol tattooed on his stomach who infiltrates Leo's dream. •
Dark Beaver (voiced by
John Kassir) is a red-furred member of the Dream Beavers with glowing red eyes and a flaming skull symbol tattooed on his stomach who infiltrates Donnie's dream. •
Dread Beaver (voiced by Robert Englund) is an orange-furred member of the Dream Beavers with glowing red eyes and a crying cracked skull symbol tattooed on his stomach who infiltrates Raph's dream. •
Dave Beaver (voiced by John Kassir) is a blue and pink-furred member of the Dream Beavers with blue eyes and a rainbow-and-starred heart symbol tattooed on his stomach who infiltrates Mikey's dream that the Turtles shared dreams. Dave is an unintelligent member of the group and is often a source of annoyance to his brothers in a fashion similar to Michelangelo and the Turtles. •
Speed Demon (voiced by
Steve Blum) is a mutant purple
muscle car (a mix between a
1970 Dodge Charger R/T, a
1969 Chevrolet Camaro, a
1971 Ford Mustang, and a
1971 AMC Javelin SST) capable of turning whoever is driving it into its mutant host with the need for speed. It was created after the car ran over a spilled mutagen supply that Rasputin the Mad Frog lost during the Punk Frogs' fight with the Turtles in "The Croaking", which brought it to life. It is the only known non-animated object to have been turned into a mutant. •
Chimera is an 11 ft. mutant falcon/fish/earthworm hybrid. It is the result of a falcon getting soaked with mutagen from the exploded Speed Demon after it catches and consumes a fish with an earthworm in its mouth. •
Don Vizioso (voiced by
Brian Bloom) is a crime lord of an
Italian mafia branch in Manhattan. He owns his restaurant and is an old business partner of Shredder where he is often seen eating food and making use of a flying chair with different functions in it. •
Vic and Vincenzo Fulci (both voiced by Eric Bauza) are twin brothers who work for Don Vizioso. They serve Don Vizioso as his bodyguards and collectors of transactions. •
The Hammer (voiced by Eric Bauza impersonating
Sylvester Stallone) is a mob enforcer who works for Don Vizioso. The Hammer has a mech suit that has a gripping claw, a large mallet, and rocket launchers which he wears when he goes into battle against any mutants. His soul was later drained by Kavaxas. •
Savanti Romero (voiced by
Graham McTavish) is the evil mutant time master who plotted to obtain Lord Simultaneous' Time Scepter. He was mutated into his monstrous state by Lord Simultaneous as punishment for his evil actions. In "Monsters Among Us!", he gets eaten by a tyrannosaurus rex after his defeat. •
Son of Snakeweed are a spawn of Snakeweed created by Creep who puts mutagen into one of Snakeweed's severed claws. Unlike Snakeweed, Son of Snakeweed doesn't speak. Parts of Son of Snakeweed eventually fuse with Creep to form Creepweed. •
Creepweed is a fusion of the parts of Creep and Son of Snakeweed. It was defeated by Donatello using a Retro-Mutagen-based weed killer. Donnie keeps its remains in a metal box. •
Lord Vrinigath Dregg (voiced by
Peter Stormare) is an arrogant insectoid crime lord who is the ruler of the planet Sectoid 1 and the lord of all insect life in the galaxy. When the Turtles incur his wrath while on the planet Varanon, a spaceport for smugglers, space pirates, and other space criminals that are not in the Federation, Lord Dregg becomes one of their most dangerous enemies, he vows to hunt them down and destroy them no matter what. He replaces Shredder as one of the main villains in the first half of the fourth season. During the fifth season, he resurfaces where he collaborates with his old ally Newtralizer to invade Earth. •
Robug Vreen are the biomech grasshopper-type insectoid offspring of Lord Dregg. The Vreen are a hive-mind alien race originating from Sectoid 1. They answer to Dregg alone. Without his presence, the Vreen are incapable of acting on their initiative. •
Hornetron is Lord Dregg's sentient hornet-shaped ship that serves as his mode of space transportation. •
Wyrm (voiced by
Dwight Schultz) is an earthworm-haired wish-granting creature who is one of the three reality-bending creators of chaos that were trapped in hypercubes one millennium ago and scattered across the cosmos. •
Armaggon (voiced by
Ron Perlman) is a vicious shark-like alien bounty hunter and space assassin who is wanted in 87 star systems. He is an old friend of Lord Dregg. •
Overmind (voiced by
Jim Piddock) is an A.I. Program at the abandoned VX3 Warbot Factory that became self-aware where its goals are to destroy all organic lifeforms and take over all mechanical lifeforms. •
VX3 Warbots (both voiced by Jim Piddock) are the best warbots in the galaxy until the factory that manufactured them was taken over by Overmind and they began serving Overmind in its goals to annihilate all organic lifeforms. •
Bellybomb / Vrax Belebome (voiced by
Charlie Murphy) is an alien with one eyestalk and a mouth on his stomach who is a shady information dealer and has connections with Lord Dregg. •
80s Krang (voiced by
Pat Fraley) is the villain from the 1987s cartoon series and a nemesis of the 1987s Turtles. In this show, Krang is depicted as a former member of the 2012 Kraang who banished him to the two-dimensional world of the 1980s Turtles due to his incompetence. After being granted a chance at redemption, he set out to destroy the worlds of the 1987 series, the 2012 series, and the original Mirage Comics by teaming up with his cousin Kraang Subprime. After their bombs were defused, Subprime learned of Krang's plans which made him furious as the Kraang had been attempting to conquer those worlds for thousands of years. As the two of them fight with Subprime remembering why he was banished in the first place, Krang is banished back to the 1987s reality by Subprime and later suspected by the 1987s Turtles of having a hand in the arrival of a Kraathatrogon. Krang later returned to the 2012 reality with 80s Shredder where they recruited the 2012 Bebop and Rocksteady after their versions were left behind. The backstory of 80s Krang is a departure from the character's origins as depicted in the 1987 series, which depicted him as a disembodied brain from a Tyrannosaurus-resembling reptilian humanoid being who had allied with the Shredder of that universe. •
Antrax is a mutant ant created by Baxter Stockman. It can reproduce by emitting its look-a-likes from its abdomen. •
Scumbug (voiced by
Ted Biaselli) is a mutant stag beetle/spider hybrid created by Baxter Stockman from an unnamed businessman. •
Monoculus is a giant floating alien eye who is a character from Michelangelo's comic book series "Wingnut and Screwloose". It was brought to life by April O'Neil's crystal. •
Skullface McGilln (voiced by
Fred Tatasciore) is a supervillain with a skull for a head who is a character from Michelangelo's comic book series "Wingnut and Screwloose". Skullface McGilln wields a staff called the Skeletonizer which enables him to summon skulls to attack his enemies. He was brought to life by April O'Neil's Sol Star fragment where he was defeated by Michelangelo, Wingnut, and Screwloose. •
Kavaxas (voiced by
Mark Hamill) is the Lord of the Demodragons and ruler of the Netherworld who the main antagonist in the first four episodes of Season 5. He is dangerously powerful with the ability to fly, breathe green fire, shoot lasers from his hands, drain the souls out of anyone, have skin tough enough for a sword to break upon, and animate the dead. In addition, he is immune to April's exceptionally strong psionic powers. Kavaxas is called upon by Tiger Claw using the Scroll of the Demodragon, kept at bay with the Amulet of the Ancients as Tiger Claw plans to use Kavaxas' power to return Shredder to life. However, having killed Hattori Tatsu prior, Kavaxas revived Shredder as part of a process to begin his agenda of taking over the living world and had Shredder destroy the amulet to cement his dominion. However, the amulet was restored and Kavaxas is forced to send his spectral force back before being dragged into the Netherworld by the Zombie Shredder. •
Count Dracula (voiced by
Chris Sarandon) is the Lord of the Vampires who is raised from the dead by Savanti Romero himself in "The Crypt of Dracula" where he bites Raphael. According to Savanti Romero, Count Dracula originated in the Netherworld. In "Monsters Among Us!", he is staked by Michelangelo. •
Pharaoh (voiced by Grant Moninger) is the
mummy of an unnamed Pharaoh that was accidentally awoken by the Ninja Turtles and Renet. He was recruited to the side of Savanti Romero and Count Dracula. •
Vulko (voiced by
Dimitri Diatchenko) is a
Romani traveler who suffers from Lycanthropy and turns into a werewolf. His werewolf form was swayed to the side of Savanti Romero and Count Dracula. In "The Crypt of Dracula", it is revealed that Vulko has a daughter named Esmeralda. •
80s Shredder (voiced by
Kevin Michael Richardson) is the 1980s counterpart of Shredder and an ally of Krang. He debuts in the Season 5 episodes "Wanted: Bebop and Rocksteady", "The Foot Walks Again", and "The Big Blowout" when he and Krang recruit the present counterparts of Bebop and Rocksteady. He is first mentioned by the 1987s Turtles when a Kraathatrogon comes into their world. •
80s Bebop and 80s Rocksteady (voiced by
Barry Gordon and
Cam Clarke) are the 1980s versions of Bebop and Rocksteady who are 1980s Shredder's henchmen. When Shredder and Krang traveled to the 2012 reality, Bebop and Rocksteady were accidentally left behind. • The
80s Foot Soldiers are robot ninjas who serve as the foot soldiers of 1980s Shredder. •
Jei (voiced by
Keone Young) is an anthropomorphic gray wolf of mighty strength and abilities, and the archenemy of Miyamoto Usagi. He claims to be the "Blade of the Gods". Jei carries a mystic wooden staff of immense power and is a highly skilled swordsman. He also has great knowledge of Japanese dark magic and arcane lore. Jei was the one who had called the Turtles from their dimension to use their incredibly extensive ninjitsu skills to put an end to Usagi. He was able to trick them by posing as a blind wolf. •
Sumo Kuma (voiced by
Cary-Hiroyuki Tagawa) is an anthropomorphic brown bear who is the leader of the Ronin that attacked Akemi's village on Jei's behalf. He is later revealed to have been mind-controlled by Jei. • '''Sumo Kuma's Ronin''' (voiced by
Keone Young and
Tohoru Masamune) is a group of unnamed canine ronin that work for Sumo Kuma. •
Jorōgumo (voiced by
Brittany Ishibashi) is a spider Yokai that attacks Miyamoto Usagi, Kintaro, and the Turtles. ==Alien species==