The Hamato Clan | Allies and Civilians | The Foot Clan (The Shredder's Inner Circle) | The Kraang | Other Villains | TV Show Characters
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As a whole
The Foot Clan
- Back from the Brink: According to Splinter, the Foot Clan was once wiped out except for Oroku Saki. However, after the issue with Tang Shen, Saki found out his true origin and turned The Foot Clan into a proper clan again. By the beginning of the series, they are the most powerful criminal group in New York.
- Badass Crew: There's a reason they're the most powerful criminal organization in New York City, if not the world. Prominently shown in "The Fourfold Trap" when the majority of the inner circle is able to curb stomp Leo, Raph, and April as a unit.
- Breaking the Fellowship: By the end of "End Times", the Foot Clan has more or less been severed beyond repair. Fishface, Bebop, and Rocksteady all flee when things get way too weird for them to handle, Shredder accepts his permanent death by returning to the Netherworld, Rahzar is MIA, and Tiger Claw calls a truce with the Turtles.
- Conservation of Ninjutsu: The effectiveness of the inner circle (besides Shredder and Tiger Claw) tends to wane when just one or two of them faces the Turtles. However, as a unit, they're definitely a force to be reckoned with. They not only curb stomp the Turtles in "The Fourfold Trap", but they also manage to hold their own against a horde of Triceratons.
- Disney Death: The majority of the Foot Clan, implied or otherwise, have been killed off as of "Requiem" and "Owari". However, season five reveals most of them survived, with Rahzar and Shredder being the only ones that were killed off. That being said, Rahzar comes Back from the Dead during the fifth season and Shredder is revived as a zombie during the season. Both fall into Kavaxas's Netherworld.
- Even Evil Has Standards: In "Annihilation: Earth", most of them are rightfully horrified at Shredder when he stabs Splinter In the Back just as he's going to stop the Triceratons' black hole generator from activating, effectively dooming the planet.
- Evil Counterpart: To the Hamato Clan (The Turtles, Splinter, April, and Casey).
- Shredder to Splinter: The Big Bad and Big Good behind the scenes that judge the outcome of missions. Dogpound also compares them as being equal in skill but having totally different values in "Showdown". They were formerly best friends. Shredder also is an Evil Counterpart to each of the Turtles and Casey Jones in various ways (determination, armor, anger, Never My Fault, and being in a Love Triangle).
- Tiger Claw to Leonardo: Initially The Leader on the field and the master's most trusted disciple. Tiger Claw uses a machete similar to how Leo uses swords.
- Rahzar to Michelangelo: Butt-Monkey to the team. Although, Dogpound is unintentional while Mikey mostly embraces it. They also used to be 'Facebook' friends.
- Fishface to Raphael: The leader's foil and most aggressive fighter. They even acknowledge it when forced to work together.
- Stockman to Donatello: Technobabble Gadgeteer variety geniuses. They also both wear purple.
- Karai to April: They both share a father daughter relationship to the master and deeply mourn the loss of their mother. While April is a Weirdness Magnet, Karai initially just wants to be special, prompting several Designated Girl Fights despite their obvious gap in skill. April was pretty shocked that Karai is actually Splinter's daughter Miwa, who her tessen was supposed to go to and supposed that their feud could turn into a sisterly bond.
- Karai to Leonardo: They are both the new Leader on the field, have the closest relationship with the master, and are the most skilled. They also both wanted some sort of truce between the two clans at one point, but they develop a personal romantic feud on top of the family one after having to defend their families from each other, which later turned into a complete romance when Leo is told that Karai is actually Splinter's daughter.
- Chromedome to Metalhead: similar names aside both are as Kraang tech based Made of Iron mechs.
- Hun to Casey Jones, as both are the Token Human of their teams and feel the need to prove themselves because of it.
- Enemy Mine: Shredder allies his clan with the Hamato Clan to combat the Triceraton invasion at the end of season three. The two clans prove to be effective when united as one, but Shredder dooms them all when he kills Splinter before he can prevent the Earth's destruction.
- Face–Heel Turn: Saki brought back the Foot Clan by convincing the Hamato Clan to betray Yoshi and join him.
- Insistent Terminology: The Foot Clan do not use the mutant names given by Mikey when addressing each other, with the exceptions of Steranko/Rocksteady, who loves his moniker and often calls Zeck "Bebop" and an odd occasion when Stockman called Bradford "Rahzar".
- Multi National Team: A fairly diverse team of bad guys. Shredder, Karai, and Tiger Claw are all Japanese. Rahzar, Stockman, and Bebop are all Americans (one white, two black). Fishface is Afro-Brazilian. Rocksteady is Russian. Hun is Chinese.
- The Team: A traditional Five Bad Band in season one until about halfway through season two, with Shredder as Big Bad, Bradford as The Dragon, Xever as The Brute, Stockman as the Evil Genius, and Karai as the token girl. After Tiger Claw joins, the lineup keeps adding members and rankings shift around until Karai starts her own splinter faction to destroy Shredder and rectify his evil impact on the state of the clan.
- Shredder is the Big Bad and leader of the Foot Clan. Tiger Claw is The Sixth Ranger and the Foot Clan's second-in-command. Karai was the free spirited one, who had romantic tension with The Hero, and was caught in a Heel–Face Revolving Door. Bradford was The Dragon and the Foot Clan's star pupil, until he's demoted by both Karai and Tiger Claw jockeying for Dragon status. Xever is The Brute and the Foot Clan's street contact. Stockman is the Evil Genius and the Foot Clan's scientist. Zeck is The Sneaky Guy and the Foot Clan's mater thief. Steranko is the Boisterous Bruiser and the Foot Clan's weapons dealer.
- By season four, Tiger Claw is cemented as the true Dragon to Shredder's Big Bad and acting leader in his absence. Rahzar has become a more animalistic Brute and simpleminded Butt-Monkey. Fishface's brutal tenancies have been toned down to make him more of an Affably Evil Casanova. Bebop, Rocksteady, and Stockman Fly all retain their roles.
- Karai defects to form her own just Foot Clan to challenge Shredder's outright evil one. Presently a duo of herself as the serious Dark Action Girl Leader and Shinigami as playful Vampy Lady of Black Magic Lancer.
- Took a Level in Badass: The Foot Clan became an even more powerful organization once they began using Foot-Bots, and they only get worse as their membership swells, many of the generals being powerful mutants.
- Villain Team-Up: They're currently allied with the Kraang, though Shredder is well aware the alliance will not last.
- "Casey Jones Vs. The Underworld" also has Shredder mention his control of the various criminal factions of New York, and in the episode he establishes a shaky alliance with Don Vizioso's Italian mob.
- Was Once a Man: They start the series as an all-human clan, but all of its members began mutating and the clan begins to add long-time mutants as the series progresses, with Shredder himself becoming the final inner-circle Clan member who is or was an antagonist to the Turtles to undergo a mutation.
- What Happened to the Mouse?: Hachiko only appeared in one scene of "The Gauntlet" and hasn't been seen since. When asked,
Word of God simply states that Shredder is a terrible pet owner.
Rogue Foot Clan
As a whole
Rogue Foot
Founded by Oroku Karai/Hamato Miwa after managing to escape the Shredder's brainwashing, she establishes herself as the new head of the Foot Clan as the Shredder is recuperating and his own Foot Clan are losing territory in New York City. While morally ambiguous, this version of the Foot Clan are allies to the Turtles against the Shredder's Foot Clan. By the end of "End Times", the Shredder is rendered Deader than Dead and his mutants permanently disbanded, leaving Karai's ninja clan as the only remaining Foot Clan.
- Anti-Hero Team: Karai and Shinigami's Foot Clan contrast with the Hamato Clan in many ways. While the Hamato Clan are a Family of Choice and Ragtag Bunch of Misfits who only wish to keep their home and their family safe from things that threaten them, Karai's Foot Clan act more like a gang protecting their territory from invading elements they see as a threat. Karai's vendetta against the Shredder (and the many ways she inconveniences him) are entirely personal. With this in mind, they are most definitely allies and — apart from a few hard feelings for past events — are on the same page.
- Private Military Contractors: To bolster their ranks, Karai manages to get ahold of a group of mercenaries skilled in ninjitsu.
- Red Is Heroic: While the Shredder's Foot Ninjas and Foot-bots all dress in black, Karai's ninjas all dress in Hamato-clan red, representing them as allies of the Turtles.
- Renegade Splinter Faction: In season four, after the Triceraton invasion is thwarted, Karai starts her own branch of the Foot Clan for the express purpose of taking Shredder out once and for all. Karai's branch of the Foot Clan is allied with the Turtles, and that while she claims that she wants to bring honor to the Foot and make her true father proud, she also desires revenge on the Shredder for everything that he has done.
Hamato Miwa/Oroku Karai
Voiced by: Kelly Hu
Click here for spoilers
"C'mon, let me in on the fun."
The Shredder's daughter who takes over as The Dragon after Bradford and Montes fall out of favor with Shredder. Leonardo bonds with her and he desires to see her become good. Little does Karai know that her entire life is a lie, as she finds herself becoming a major pawn in the war between the Hamato and Foot Clans.
- Adaptational Badass: She is the first version of Karai to be mutated.
- Adaptational Heroism: While more prone to morally questionable actions, she is more capable of disobeying her father than previous versions and, unlike previous versions, defects from the Foot Clan, only to get mutated and eventually brainwashed back in until Splinter uses his healing mantra to free her, and after the space arc, forms her own version of the Foot Clan that is allied with the Turtles.
- Adaptational Villainy: Played with. While she still displays some shades of Ambiguously Evil and isn't as bad as her 2003 counterpart after Jumping Off the Slippery Slope, Karai doesn't really share the Noble Demon shades of her comic book counterpart or her 2003 counterpart pre-Jumping Off the Slippery Slope, and is much more mischievous than both.
- Adaptational Weapon Swap: In the comics and most versions, Karai typically uses a katana. Here, she uses a wakizashi.
- Aesop Amnesia: When she learns the truth about what happened between Splinter, Shredder, and Tang Shen, she runs off to pick a fight with Shredder only for Shredder to point out that he taught her everything she knows which results in her getting mutated and later brainwashed. As of season four, Karai has been targeting Shredder's various hideouts and gives it up in favor of going after Shredder himself.
- All There in the Script: Production materials for Karai's snake form call it "Kiba".
- Ambiguously Evil: Subverted in "The Alien Agenda", where the "ambiguous" part disappears. Played straight again in "Enemy of My Enemy" though, and the end of "Karai's Vendetta". Though she eventually pulls a Heel–Face Turn.
- Antagonistic Offspring: Shredder revealed to Splinter that after their fight, Shredder took Miwa away and changed her name to Karai. However, Shredder told her a different story, reversing his and Splinter's positions, so Karai didn't realize she's this until seeing the photo of the Hamatos in the Turtles' Lair, which includes her mother. She becomes this in the fourth season after Shredder is put in critical condition.
- Anti-Hero: When she appears in the fourth season, she's no longer under Shredder (either on her own will or via brainwashing worms), and leads a small Foot faction that includes Shinigami; their goal is stamping out what's left of Shredder's influence in New York after Karai becomes an ally to her real father, Splinter, who had incapacitated Shredder after his attempted Backstab Backfire in "Earth's Last Stand".
- Anti-Villain: Subverted, then later played straight: something of a Woobie, Destroyer of Worlds example (she's only evil due to circumstances she couldn't control when she was a baby) with shades of Noble Demon (though as noted below, she's kind of erratic on that).
- Arch-Enemy: To Leonardo as of "Enemy of My Enemy" and April as of "Karai's Vendetta". Until she finds out the truth later on in season two and, starting with "City At War", it's safe to say they've all patched things up. She begins treating Shredder as the hateful Arch-Enemy she wants dead after she finds out the truth, even retaining her desire to attack him while mutated. It takes until the fourth season for her to finally be able to go after Shredder.
- Arrogant Kung-Fu Guy: She is especially this trope in "Karai's Vendetta".
- Artifact Alias: Even after her identity as Miwa is discovered and she finds out, the Turtles and their allies exclusively refer to her as Karai; only Splinter, her true father, calls her Miwa.
- Badass Biker: In her street clothes and due to having a motorcycle that she drives in "Enemy of My Enemy" and "Karai's Vendetta".
- Badass Normal: She has no special powers beyond her training and no transformations or robotics to enhance her in any way. Until she is mutated, however.
- Back-to-Back Badasses: Finally works together in a Tag Team with April in "The Insecta Trifecta" to fight off swarms of insect mutants, even helping each other preform combo attacks.
- Berserk Button: While she doesn't have her mind or ability to even communicate after her initial mutation, she still somehow retains utter hatred of Shredder/Oroku Saki. When confined prior to brainwashing, whenever he approaches her cell, she bolts and tries to attack him. Once she's freed of the brainwashing, her entire goal is getting back at Shredder.
- Also, insulting her mother's death is a bad idea too.
- Big Red Button: Apparently cannot resist the urge to press them, as seen in "The Alien Agenda".
- Brainwashed and Crazy: She's a victim of this toward the end of season three thanks to the mind control worms. She is however freed of this by the very end of said season and disappears shortly afterward, returning after the "Turtles in Space" arc with Shinigami.
- Cain and Abel: She's the Cain to the Turtles' Abel as she's the biological daughter of Hamato Yoshi/Splinter raised by Shredder until she goes through Character Development where she learns the truth and goes through a Heel–Face Turn
- Card-Carrying Villain: Lampshaded in "The Alien Agenda".Raph: She's bad news!
Leo: No, she's not!
Karai: Yeah, I am. - Character Development: She goes from being a rather hedonistic and self-serving young lady who relishes in her supposed freedom to being more responsible, serious and composed. It's implied that this was the result of learning the truth on her past meant reevaluating everything she knew along with the horrors associated.
- Cool Bike: Uses one in both "Enemy of My Enemy", "Karai's Vendetta", and "City at War", the last one with Shinigami as a co-rider.
- Cool Helmet: A Motorcycle helmet for the aforementioned Cool Bike.
- Composite Character:
- As in the 2003 series, Karai has elements of the original Karai from the comics, Pimiko, the Shredder's daughter in the Image series, and Lotus Blossom, a Foot Clan ninja who served as Leonardo's love interest.
- She also shares some similarities with a minor villain from the Mirage comics called the Mistress. Just like the Mistress, Karai is a biological relative of Tang Shen who is manipulated by the Shredder into believing that Hamato Yoshi was the antagonist in their love triangle and the Shredder was the good one.
- The Corrupter: Tries to be this to Leo. He in turn, tries to get her to become good. In the fourth season, Leo actually joins her Foot Clan for one episode and does stuff like blowing up armories.
- Curb-Stomp Battle: Her fight with April is her giving one of these to her... until April gets her to let her guard down by mentioning her Missing Mom.
- Daddy's Little Villain: Shredder is her adoptive father, and he's raised her to be a deadly assassin with a scheming mind.
- Dark Action Girl: She's been able to hold her own against any of the Turtles and has no trouble at all with the Kraang-droids.
- Dark Is Evil: She primarily wears dark colors and makes no secret about how dangerous she is to the Turtles.
- Dark Is Not Evil: Karai continues to wear black even after her Heel–Face Turn.
- Dating Catwoman: In only one episode, she and Leo connected pretty well. Subverted later in "The Alien Agenda" when she betrays Leo and he gives up on her. Shades of this pop up again in "Enemy of My Enemy"... only to end up coming apart at the seams again.
- Designated Girl Fight: When the Foot Clan starts going on the offensive, Karai singles out April as a viable hostage to use against Splinter and the Turtles, personally trying to kidnap her and even tries to use her as a test-subject for Chrome Dome's lethality. Even after she becomes an official ally to the Hamato Clan, she mocks April for being "weak" and dares her to take her weapon back from Shinigami, though she does eventually apologize in the end.
- Dramatic Irony: Karai at one point was trying to kill the Turtles and April. Now, she's helping them, including saving April, who she once considered an enemy from Tiger Claw.
- Deadpan Snarker: Compared to her previous versions, this version of Karai is much more snarky and less serious, willing to snark even in front of her father.
- Decomposite Character: Her usual trait from the comics and previous adaptations of coming from Japan to try to take over the Foot Clan in New York after Shredder's defeat is given to Hattori Tatsu.
- Delinquent Hair: She wears Boyish Short Hair with tails and two tone dye. It goes well with her bad reputation, which she is very proud of.
- Disaster Dominoes: Once she discovers the truth about her parentage more than halfway through season two, her life immediately goes downhill, with her being captured twice, then mutated into a near-mindless creature, then brainwashed as Shredder's loyal servant. It takes until the second half of season four for her to get back on her feet in a meaningful way.
- Dragon with an Agenda: Starting with season two. She's later demoted, much to her chagrin, when Tiger Claw joins the Foot Clan. She was never seen in the episodes between "The Manhattan Project" and "The Wrath of Tiger Claw", so it's unknown if she became The Dragon again.
- Empowered Badass Normal: Gets mutated into a snake creature in "Vengeance is Mine", but the fact that the mutagen was tampered with also allows her to return to human form. Deemphasized, however, as the mental effects, even in her human form, are extreme. She can barely speak. She eventually recovers from the mental effects, though. By the second half of season four, she can shift in and out of the form at will.
- Enemy Mine: Briefly with the Turtles against the Kraang, but then subverted when she takes a broken droid and abandons the Turtles to fight the mutant monster she created.
- She does this again in the aptly-titled "Enemy of My Enemy", where she actively seeks out the alliance after learning of the danger of the Kraang. Once again, it doesn't last, but this time, it's the Turtles' fault rather than her own.
- Even Evil Has Loved Ones: Her true father, Splinter. And despite never having met her, her mother.
- Even Evil Has Standards:
- When the Turtles betray her trust in "Enemy of My Enemy", she is unsurprisingly disgusted with them for doing so, though she has little room to talk.
- In "The Wrath of Tiger Claw", she refuses to harass Murakami, a blind old man, for the Turtles' location.
- Evil Counterpart: To Leonardo, both are the best students of their masters.
- Evil Feels Good: In her debut episode, she thrives on the freedom being a member of the Foot Clan grants her, and tries to convince Leo that Being Good Sucks and to just do whatever he wants. When she tries to steal a priceless katana and goad Leo into doing the same, Leo tells her she doesn't have to do such things, to which Karai retorts "That's what makes it fun!"Karai: Don't tell me the goody-three-toes thing doesn't wear thin after a while.
Leo: Better than the alternative.
Karai: Which is what? To have fun? To cut loose? To live your own life? - Evil Versus Evil: Briefly against the Kraang.
- Facial Markings: Are they makeup or tattoos? Who knows.
- The Farmer and the Viper: Leo constantly tries to reason with her early on, insisting she's not as bad as she claims to be. Karai responds by doing such acts as creating a monstrous super-mutant by mistake and ditching the Turtles to clean up her mess and going out of her way to torment and attack both the Turtles and April as Revenge by Proxy against Splinter, all while mocking Leo to his face for thinking any different of her.
- Faux Affably Evil: She was friendly and sociable to the Turtles, but still very much a bad girl. Following their betraying her trust, she develops a full-blown hatred of them for a while. In "Karai's Vendetta", her normally sociable and easygoing personality here only serve to highlight the sadistic pleasure she takes in hunting April. After discovering the truth about her parents and Shredder, she returns to affable, then Faux Affable comes back when she's brainwashed toward the end of season three.
- Fighting from the Inside: After being mutated in "Vengeance is Mine", she manages to stop herself from killing Splinter. In "Serpent Hunt", her human side is trying its best to resist the reptilian instincts, but it's made clear that she was fighting a losing battle before Baxter Stockman "cured" her and then brainwashed her. She gets better.
- Flirty Step Siblings: With Leo, although when they first meet, neither is aware that they are step-siblings.
- Fire-Forged Friends: With April.
- For the Evulz:Leo: Karai, you don't have to do this.
Karai: I know. That's what makes it fun! - Friendly Enemy: To the Turtles, at least on her end. The "friendly" part was cut for a while, though she seems to be rekindling with them after discover that they're practically her brothers. This gets cut again in season three, but brainwashing worms are to blame this time. Finally becomes a semi-ally in the second half of season four.
- Green-Eyed Monster: Shows signs of it towards April in "Karai's Vendetta", when she angrily demands to know what makes April so special as she's pounding her into the dirt. Her jealousy towards April returns in "Target: April O'Neil", when she's in the middle of trying to kill her to spite Splinter and the Turtles as well as end one of her most hated rivals.
- A Handful for an Eye: A signature move she uses often, especially on Leonardo.
- Hartman Hips: Karai's butt and thighs are rather large, and often emphasized by her skintight ninja gear.
- High-Heel–Face Turn: She is the only female villain on the Foot Clan and she finally sides with the Turtles for real after learning that Splinter was her true father all along.
- Healing Factor: Revealed to have one in "Broken Foot" at least when it comes to skin damage, as she heals the burn to the side of her head by performing a mild transformation and "shedding" the damaged skin.
- Heel Realization: Feigned believing that Splinter was her true father to get the Turtles to bring her back to their lair. It actually hit when she saw Splinter had a copy of the full picture of Tang Shen and Yoshi, of which she had only ever had the Tang Shen half.
- Hellbent For Leather: Her street clothes.
- Hidden Agenda Villain: Her actions and expressions during the coda of "The Alien Agenda" indicate she has reasons all her own to make sure the Foot Clan get advanced technology.
- Hulk Speak: As Kiba. It's a plot point, as she can only give vague clues to where she hides. She can speak normally later.
- Hypocrite: She's not in the best position to criticize the Turtles for betraying her when she had earlier done the exact same thing and showed absolutely no remorse doing so.
- In season one, she remarked that Shredder was "obsessed with revenge". In season two, she becomes bent on taking revenge against Splinter, even disobeying Shredder's orders to do so.
- She stops Shredder from killing a weakened Splinter by claiming it would be dishonorable, except she was the one who fired the tranquilizer dart at him in the first place while he was fighting off Tiger Claw.
- Hypocrite Has a Point: While she has little room to talk when she calls the Turtles out for betraying her trust in "Enemy of My Enemy", she's not wrong in calling them out; Karai was nothing but honest about being untrustworthy in "The Alien Agenda", agreeing with Raph rather than Leo about being "bad news". She never made Leo any promises not to betray their alliance, while Leo did with her. Also, it should be noted that after all of the discussion about whether or not to trust Karai, the Turtles are the ones who double-crossed her this time, not the other way around.
- Ink-Suit Actor: Her facial design and figure is a splitting image of her voice actress Kelly Hu.
- Jerkass Has a Point: While it is true that the Shredder is the Turtles' enemy, in choosing to try and take him out they show that this is more important than their alliance with Karai, which was the source of Karai's disappointment. She thought the Turtles, in particular Leo, was better than that and was willing to work with her against a common enemy and is right to say that Leo was the one who betrayed her this time, not the other way around.
- Jerk with a Heart of Jerk: She seems this way at the end of "The Alien Agenda". Later appearances subvert this and show that she really does have good qualities and that it's just (literally) difficult for her to express them due to her Lack of Empathy.
- Jerk with a Heart of Gold: She is starting to become a better person now that she knows of her true heritage. Still won't give up her desire for revenge against Shredder though... but has made amends with the Turtles and even April.
- Jumping Off the Slippery Slope: Starting in "Karai's Vendetta", where following her coming to hate the Turtles, she fully goes from an Affably Evil Friendly Enemy to a sadistic and Faux Affably Evil seeker of vengeance. It only got worse when Splinter became involved, leading her to commit such acts as trying to kill the Turtles and/or April just to personally hurt him and make him suffer. It comes to an end in "The Wrath of Tiger Claw", where she discovers the truth about her parentage and completely backpedals.
- Kick the Dog: She abandons the Turtles to fight an Eldritch Abomination she created, which causes Leo to give up on her...until the next time they met, anyway.
- While her rage against Splinter is understandable and even pitiable since it's a huge lie Shredder has fed her all her life, she certainly doesn't come off too well trying to kill the Turtles or April just to personally hurt him (or settle her jealousy-induced grudge against April).
- Lack of Empathy: As stated above, she abandons the Turtles even though the Eldritch Abomination attacking them was her own fault, and when Leo points out that he trusted her, she mocks him. Then again, she was raised by a full-fledged sociopath, so it isn't very surprising. She moves past this fortunately
- Laser Guided Tyke Bomb: Shredder's more or less made her his pawn in his revenge against Splinter.
- Love Makes You Evil: A variation. While Karai was always a villain, her hurt at Leonardo's betraying her trust in him prompts her to go from a Friendly Enemy with a Dating Catwoman type relationship with Leo to a hateful Arch-Enemy. Her desire to avenge her mother Tang Shen eventually leads her to conflict with Shredder, which leads to her mutation into a snake creature and eventually her brainwashing.
- Makeup Is Evil: She has red lipstick and heavy eyeshadow.
- Master Swordsman: She appears to be as good as Leo, if not better.
- Meaningful Name: Karai means "Weapon". Which is more or less what Shredder is using her as; a means to hurt Splinter, as she's actually his daughter.
- "Kiba" is Japanese for "fang". Fitting, considering her mutation...
- The Mind Is a Plaything of the Body: After becoming a snake mutant she can't help but see Splinter as prey.
- Missing Mom: Mentioned in "Karai's Vendetta", which is later revealed to be Tang Shen. Turns out she was told by Shredder that Splinter killed her, when it was in fact the other way around.
- Morality Pet: A twisted example. She is this to Shredder, but he has no qualms of subtly threatening her life and kidnapped her from real birth father, Splinter, just out of spite. However, when she was mutated into a humanoid snake, he showed great anger and sadness, vowing revenge against Splinter and the Turtles for what they did to her. Even though it was entirely his fault.
- Moral Myopia: She called the Turtles out for betraying her even though she betrayed them first.
- Morphic Resonance: After mutating, she retains her snake form's eyes, tongue and teeth when in her humanoid form.
- My God, What Have I Done?: Says this after alerting Tiger Claw to the location of the lair (without the "My God" part) when she realizes that Hamato Yoshi is indeed her real father.
- Nice Job Breaking It, Hero: The pummeling Karai gives to Hattori Tatsu in "The Forgotten Swordsman" leaves him unable to fight Kavaxas, who steals both his soul and the Kuro Kabuto, two steps to reviving Shredder and starting The End of the World as We Know It.
- Nice Job Fixing It, Villain: She accidentally creates Justin. Leo even points out it's her fault, but she doesn't care.
- Nice Girl: Didn't start off this way, but slowly has become one since her Heel–Face Turn.
- Noble Demon: Zigzags on this like all hell. She may occasionally show signs of honor and compassion, but this is interspersed with trying to kill the guys for Splinter's (alleged) crimes and April just to hurt the guys.
- Only Sane Man: Unlike the Shredder, she understands thwarting the Krang's alien invasion of Earth should probably take priority over revenge on the Turtles. Also counts as Pragmatic Villainy.
- Out of Focus: From "Vengeance Is Mine" to "City at War" (roughly two seasons and two out-of-universe years), even though she's still critical to the plot, it's only by virtue of being a plot device with little development on her own following her mutation.
- Pet the Dog: She is actually willing to help with no strings attached in "Enemy of My Enemy" and even shares a moment of empathy with April in "Karai's Vendetta" that allows April to escape her.
- Pragmatic Villainy: In "The Alien Agenda" in contrast to Shredder.
- Promotion to Opening Titles: Her reflection appears in Shredder's mask in the season two opening.
- Psychotic Smirk: She makes one at the end of "The Alien Agenda".
- Raised by Orcs: Karai was born the daughter of Hamato Yoshi (later named Splinter after his mutation), but she was raised by the Shredder as a member of the Foot Clan, being involved in all of the illegal and dishonorable activity that entails.
- Raven Hair, Ivory Skin: Save for a part of the former that's dyed blonde.
- Real Name as an Alias: She goes undercover using the name Harmony. However, "Karai" does not mean "harmony". "Miwa", however, does.
- Reformed, but Rejected: Raph is skeptical of her Heel–Face Turn until her mutation.
- Redemption Quest: Starting with season four, she is currently sided with the Turtles and their friends and trying to make up for all the wrongs of the past (even saving April from Tiger Claw in "Darkest Plight").
- Related in the Adaptation: This version of Karai is actually Miwa, the biological daughter of Hamato Yoshi/Splinter.
- Relative Button: In "Requiem", Shredder declares to her that it's fitting that she should die just as her mother did: in an inferno. Karai promptly flies into a rage and tries to stab Shredder directly in the heart... only for her blade to shatter against it.
- Redeeming Replacement: From "City at War" onwards, she and her Foot Clan branch seek to be this to Shredder's own clan. Karai states outright that she seeks to rebuild the Foot Clan under better circumstances and restore its honor after everything Shredder did to pervert it.Karai: I want to rebuild the Foot Clan. Bring back honor to a clan that Shredder poisoned for almost two decades.
- Revenge Before Reason:
- From "Enemy of My Enemy" onward. While initially pragmatic enough to prioritize trying to stop the Kraang, when the Turtles betray their alliance to attempt to take out Shredder, she flies off the handle and swears revenge on them, to the extent that she doesn't even care about stopping the Kraang anymore.
- Even after her Heel–Face Turn, she falls into it in "Vengeance is Mine". Karai completely blows off Splinter's words that vengeance only leads to more pain and attacks Shredder with the intent to get back at him for everything he's done. It backfires spectacularly since Shredder taught Karai everything she knows, leading to Karai being captured, used as bait for the Turtles, and ultimately mutated.
- Roaring Rampage of Revenge: Against the Turtles as of "Enemy of My Enemy" up until "The Wrath of Tiger Claw".Karai: Our deal's off! You want a feud? You've got one!
- Rousseau Was Right: Cruelly subverted. Her abandoning the Turtles to a monster she created causes Leo to give up on her.
- Double subverted in "Enemy of My Enemy" where she actively seeks out an alliance with the Turtles, reigniting Leo's hope that there's goodness in her.
- Silly Rabbit, Idealism Is for Kids!
- This gets turned on its head later:
Karai: I thought you were my friend! How could you betray me!? - Spikes of Villainy: Downplayed. There's a few small ones on her armor. Her street clothes feature a jacket that has a ton of these.
- Sssssnake Talk: Post-mutation, any words in English from her are this until "City at War".
- Stealth Hi/Bye: To Leonardo in "New Girl In Town".
- The Un-Reveal: It is never exactly revealed where Karai was between the end of "The Fourfold Trap" and when Raph and April meet her in "City At War".
- The Vamp: She's very privy on using her feminine wiles to get what she wants, especially from males like Leo and Casey Jones who find her attractive. When she undergoes her mutation, she goes straight into Snakes Are Sexy territory and even kisses Casey to poison him just for kicks.
- Tragic Keepsake: She has a picture of her mother that was actually a photo of both her birth parent with Splinter conveniently cut out of the picture.
- Tragic Monster: She was mutated into a snake creature all because of Shredder's carelessness in attacking Leo when he tried to free her from her restraints.
- Token Good Teammate: She was this for the Foot Clan before Shinigami came along. Even before her Heel–Face Turn, she was probably the least evil member of the Foot Clan.
- Too Many Mouths: In her snake creature form, aside from her snake arms she also has a mouth on the back of her head.
- Unwitting Pawn: Her entire LIFE.
- "Well Done, Son" Guy: In the "Well Done, Daughter!" Gal version. Karai has shades of this beneath her supposedly care-free exterior. Shredder means alot to her and works to make him proud of her, though toned with dark underones given how the Shredder is.
- More tragically, this is the case with her real father, Hamato Yoshi/Splinter. She's hesitant to join the Hamato and insist tries to redeem the Foot. It's implied that beyond the emotional damage inflicted on her by Shredder, it's the result of her past guilt in warring with them before she learned the truth and possibly her own shame with how she used to be. To further add to the tragedy, Splinter makes it clear that he is already proud of her.
- You Are Better Than You Think You Are: Leo tried to make her realize this early on, but so far, he hasn't gotten through. It takes her finding out the truth about her family for it to sink in.
- You Killed My Father: She believes that Splinter killed her mother. Except it's all a lie, and Splinter is her biological father. She is extremely shocked and displeased when she learns the truth.
- Younger and Hipper: Like April, she's been aged down to 16 years old.
Shinigami
Voiced by: Gwendoline Yeo
A Japanese young woman with dark powers.
- Actually Pretty Funny: She admits Mikey regularly makes her laugh.
- Animorphism: She is able to take on the form of a black cat with a pair of glowing, yellow eyes.
- Bad Powers, Good People: Shinigami is a witch-ninja with some rather unsettling abilities like hypnosis and transforming into a black cat, yet she is very much an ally of the turtles as a member of Karai's splinter-group Foot Clan and is generally very nice.
- Blade on a Rope: Shinigami uses a kusarigama with a crescent shaped blade and hypnotic stone attached to it as a weight.
- Canon Foreigner: She was created for the series.
- Dance Battler: Her combat involves quite a lot of dancing around, though not nearly as often as Bebop.
- Dark Is Not Evil: Despite her Goth/Witch motif and an honorary Foot clan member, she is actually very nice and flirtatious, having allied with the Turtles on various occasions.
- Dating Catwoman: Perhaps taking a cue from Leo, Mikey wants this with Shinigami.
- Excessive Evil Eyeshadow: Well, it looks evil at least...
- Gamer Chick: Is seen playing on a PSP in her spare time.
- Goth Girls Know Magic: Shini has a goth look to her that somewhat crosses with Japanese witch traits, and she has a good deal of magic tricks up her sleeve.
- Girly Girl: Shows signs of this when Leo joins her and Karai on a raid on Shredder's resources. The first thing she does upon seeing ill gotten cash is squeal in delight and exclaim how much they can buy with the money.
- In-Series Nickname: Often referred to as "Shini" by her friends/allies.
- Jerkass to One: Throughout much of her debut episode, Shinigami constantly taunts and toys with April just for the fun of it. Thankfully though, she later apologizes to April for her actions.
- Kung-Fu Wizard: In addition to her magic tricks and traps, Shinigami is a powerful ninja and nails the Turtles and April the first time they meet.
- Lady of Black Magic: An attractive, composed, and feminine kunoichi with magic, summoning bats from shadows and illusory powers to stun enemies.
- The Lancer: Becomes one to the Heel–Face Turn Karai.
- Kunoichi: Karai's right hand in the Rogue Foot.
- Names to Run Away from Really Fast: It means "death god".
- Nice Girl: Ironically, considering her motif, but once you get on her good side, she's actually quite friendly. She's willing to goof off sometimes, and gets along with Mondo Gecko in "Requiem".
- Non-Indicative Name: Shinigami means "God of Death". While Shinigami herself is Japanese, she fashions herself after a western style witch rather than an eastern demon. She's not even an enemy, just an old friend of Karai, and generally friendly to the Turtles also.
- Perky Goth: Despite her creepy attire and namesake, she has a positive personality, treating her battles like games and helping the Turtles fight the Shredder's forces.
- Pull a Rabbit out of My Hat: Has been seen to pull objects out from her hat.
- Raven Hair, Ivory Skin: Shini has black hair and pale skin.
- Robe and Wizard Hat: She wears a witch hat and a short cape that resembles bat-wings.
- Shinigami: Her name is a reference to a Japanese deity.
- Stock Ninja Weaponry: Her weapon is a Kusarigama (chain-scythe). She also uses the mace-end of it - a cat's eye pendulum - to hypnotize those that look into it.
- Supernatural Gold Eyes: Shini has gold eyes and possesses a few supernatural traits.
- Token Human: As of "The Super Shredder", Shinigami is now the only non-Mookperson in the Foot Clan to even be a human; Karai, despite taking a human form throughout, is still a mutant, and Shredder becomes a mutant later on.
- Undying Loyalty: To Karai, and she is pissed at the Shredder for what he's done to her friend.
- Vague Age: It’s unclear whether she’s a teenager or a young adult.
Purple Dragons
Hun
Voiced by: Eric Bauza
The Purple Dragons' new leader, who makes his debut in the third season.
- Adaptational Comic Relief: Toned down, but the 2003 and comic book versions of Hun were both threatening, serious villains who were usually not played for comedy. This version of the character, while still a formidable foe, is considerably more over-the-top and comically hammy in his Bruce Lee-esque mannerism.
- Adaptational Wimp: This version of Hun is much less of a threat than 2003 Hun was even after his Villain Decay set in. In the fourth season, he's largely there just to get beat up as soon as he appears.
- Arrogant Kung-Fu Guy: He avoids Casey's attacks merely by tilting his head, blocking with his fist, and catching one of Casey's pucks and then proceeds to beat up Casey with regular martial arts.
- Bad Boss: When he introduces himself to Casey, he steps on one of the Purple Dragon's face.
- Beware the Silly Ones: His kung-fu yells may sound over-the-top, but his moves are no laughing matter.
- Curb-Stomp Battle: Effortlessly takes down Casey in his first scene.
- Bruce Lee Clone: A rare villainous example.
- Decomposite Character: He is Hun In Name Only, while most of Hun's more recognizable characteristics are instead given to Chris Bradford. His name, his clashes with Casey, his status as the leader of the Purple Dragons and him having tattoos are the only characteristics similar to the original Hun.
- Evil Counterpart: To Casey. He's an normal human brawler allied with a group mutants and feels he has to prove himself to keep up.
- Evil Versus Evil: Averted. Even though the Purple Dragons were working independently from the Foot Clan in their last appearance, Hun has helped the Purple Dragons re-ally with the Foot Clan. His gang's current allegiance is unknown in the wake of the Shredder's injuries.
- Flat Character: He never had much development besides being a hammy Bruce Lee Clone.
- Funny Bruce Lee Noises: All the time.
- Genius Bruiser: Much like the original Hun.
- Groin Attack: He finishes off Casey by throwing his own puck at him and it looks like he aimed for that particular area.
- In Name Only: The only similarities this version of the Hun really has with the 2003 and comic book versions of Hun are his name and role as leader of the Purple Dragons, being entirely different in aesthetic, combat, and personality.
- Lightning Bruiser: Once again, much like the original Hun.
- Out of Focus: After his introduction, he quickly disappears after "Meet Mondo Gecko". He returns in the fourth season as a minor antagonist.
- Race Lift: Whereas 2003 Hun was originally Caucasian white, this version of Hun is Asian.
- Shout-Out/Bruce Lee Clone: His appearance was based off of Bruce Lee.
- Sunglasses at Night: He always wears a pair of sunglasses with purple lenses, even when meeting Shredder in the middle of the night.
- Token Human: The only one of Shredder's chief lieutenants who is wholly human.
- Underestimating Badassery: He doesn't look like much, especially compared to mutants like Rahzar or Tiger Claw, but Casey makes the mistake of underestimating Hun and gets his ass kicked for his troubles.
Fong, Tsoi, and Sid
Fong
Tsoi
Sid
A trio of thugs who make up the Purple Dragons, a street gang roped into working for the Shredder by Bradford, Montes, Stockman and Steranko. Fong and Sid are both voiced by Andrew Kishino, while Tsoi is portrayed by James Sie.
- Abandoned Warehouse: Their headquarters is an empty fortune cookie factory.
- Adaptational Wimp: The Purple Dragons are usually a large, city-wide gang that menaces New York in most adaptations. Here, they're just a small group of guys that cause trouble in their neighborhood and commit minor crimes.
- All There in the Script: Only Fong's name has been mentioned on-screen. Tsoi and Sid's names appear in the episode credits.
- Badass Crew: Subverted. They're weaker than the Foot Ninjas and are treated as Cannon Fodder by the Turtles. They are in the running for the Turtles' least threatening adversaries. This is lampshaded FIERCELY when Hun takes over.
- Big, Thin, Short Trio: Sid is big, Fong is thin and Tsoi is short.
- The Brute: Sid. He has the largest build of the three, even if he isn’t as tough as he looks.
- The Cameo: They make one in "Showdown".
- Canon Foreigner: They were created for the series.
- Dartboard of Hate: A picture of an actual turtle, with a red ninja mask scrawled on it.
- Gangbangers: They are the gang "The Purple Dragons".
- Goldfish Poop Gang: While they do show up rather often they aren't ever seen as much of a threat.
- Jerkass: All of them.
- Lean and Mean: Fong is extremely gaunt.
- Mooks: They are weaker than Foot Ninjas, and thus make better cannon fodder.
- Oddly Small Organization: We have never seen that many Purple Dragons despite being a prominent street gang.
- Out of Focus: After Bradford and Montes got mutated, they started to appear less and less, until eventually making an unvoiced cameo in "Showdown". The only roles they take in season two were a brief fight with Casey in "The Good, the Bad, and the Casey Jones", and function as Steranko's artifact retrievers until he got mutated, and then as Ho Chan's henchmen in "A Chinatown Ghost Story", but then abruptly disappear from the plot after being asked about Ho Chan when he throws them away.
- Even in "Casey Jones Vs. the Underworld", they only appear in the opening.
- Pet the Dog: In "Never Say Xever", Fong hands Leonardo his out-of-reach Katana blades as a reward for showing mercy when he was fighting him, to help defeat Xever and save Murakami.
- Rousseau Was Right: When it look like Xever, Bradford, and the Foot Ninjas have the Turtles beat, Fong tosses Leo (who had let him go earlier) his sword, though it was possible he did it to get back at Xever for knocking him around.
- Shame If Something Happened: They're introduced trying to extort Murakami, and a later episode reveals they have to pay tribute to the Shredder, presumably for the "privilege" of operating under his name.
- Tattooed Crooks: Like most stereotypical gang members.
- Terrible Trio: Subverted. They're a trio of bad guys, but they lack the needed individuality that comes with this trope, all having more or less the same personality.
- Took a Level in Badass: They're granted powers by Ho Chan in "A Chinatown Ghost Story", which makes them more effective. While tougher, the Turtles take them down with as much difficulty as an average mutant. Ho Chan then removes their powers out of annoyance for the shoddy performance.
- The Triads and the Tongs: They all appear to be Chinese.
Foot Soldiers and Other Associates
Koga Takuza
The founder of the Foot Clan, he's well known in Japanese history for the group's creation. He was also responsible for the creation of the Kuro Kabuto.
- Canon Foreigner: He was created for the series.
- Greater-Scope Villain: Downplayed; while he is the founder of the Foot Clan, it's unknown if he and his clan were truly villainous before eventually Oroku Saki took control in the present day.
- Ninja: One of the first in the Foot Clan.
- Posthumous Character: Having founded the Foot Clan before they were wiped out and the Kuro Kabuto being an heirloom, this is most likely his status.
The Foot Ninjas
The openly acknowledged Cannon Fodder of the Foot Clan.
- Adaptive Ability: "Follow The Leader" introduces us to robot Foot Ninja, who catch on to a person's attack pattern as a fight goes on.
- Adaptational Badass: The Footbots seem to be far more dangerous and powerful here due to their Adaptive Ability, whereas they were just Cannon Fodder in the 1987 series.
- Badass Army: Subverted, then played straight upon the introduction of the Foot Bots.
- Cannon Fodder/Mooks:
- Cool Mask: With almost bug-like eyes, like most versions of the Foot Clan.
- Dark Is Evil: Mostly black, fitting their role as stereotypical ninjas.
- Faceless Mooks: They are never seen unmasked, and the robotic foot wouldn't have a face aside from their "masks" any way.
- Ineffectual Sympathetic Villain: And lampshaded by the Turtles in "Pulverizer Returns". Justified because it turns out that most of them are not properly trained ninjas but rather just anyone the Foot Clan can find and recruit.
- Kiai: Robot Foot Ninja constantly shriek in small bursts.
- Malevolent Masked Man: As mentioned they are malevolent and are never seen without wearing their masks.
- Mecha-Mooks: Shredder eventually runs out of properly trained Foot Ninjas, as they've all been arrested, badly injured, or just flat out quit. As a result, he ends up trading out to the Footbots in season two, which are far more expendable.
- Multi-Armed and Dangerous: Some Footbots have these.
- Ninja: They serve as this for the Foot Clan.
- Red and Black and Evil All Over: Their primary color scheme.
- Red Eyes, Take Warning: The lenses on their masks are red.
- Replacement Mooks: Season Two replaces the human mooks with robots who are far more powerful than the previous ones.
- And AGAIN in season four, with the ELITE Footbots!
- Villain Decay: In their debut appearance, the Footbots give the Turtles a lot of trouble, mostly due to their Adaptive Ability. But over time, they became just as ineffectual as the human Foot Ninja were, with said Adaptive Ability seemingly non-existent.
- The Voiceless: Aside from the robotic foot's monkey-like shrieks.
- We Have Reserves: Deconstructed: Shredder is largely unconcerned with throwing his troops at the turtles no matter how many that get beat up...which results in him running out of trained ninja and having to resort to grabbing anyone they could recruit. Turns out people with years of training aren't expendable.
- What Happened to the Mouse?: What happened to the human soldiers once Shredder replaced them with the robots is never seen or mentioned.
Shredder mutants/Mega-Shredder
- Adaptation Species Change: They're hybridized mutants rather than just human clones with bizarre traits.
- Attack of the 50-Foot Whatever: They become a giant monster after falling into a tank of mutagen.
- Body Horror: Another set of them is dumped into a vat of mutagen and they are fused together to form a giant horrifying monster that attacks New York.
- Family-Unfriendly Death: They are all killed in graphic ways (one of whom was pushed into a fan) by Splinter.
- Giant Enemy Crab: Each of the Shredder mutants appear to be based on a crustacean. Mini-Shredder a shrimp, Claw Shredder appears to be based on more of a lobster, and judging by the shell on its back Shiva-shredder may just be a crab.
- Mythology Gag: The Shredder Mutants were originally from the Mirage Comic storyline "Return To New York" in 1989, and also appeared in the 2003 adaptation of the story.
- Multi-Armed and Dangerous: Shiva-Shredder.
- Pragmatic Adaptation: The three's nature as hybrid mutant clones of the Shredder being created by Stockman make more sense here, due to the Foot Clan coming off as largely traditional before their team up with the Kraang.
- Rent-a-Zilla: As the Mega-Shredder.
- Shout-Out: Shiva-Shredder has a lot of resemblance to Goro, though the character predates Goro by several years if you go by his original comic version.
- Underestimating Badassery: The Turtles underestimated Mini-Shredder due to his height and obviously being (quite possibly) a mutant shrimp. They quickly learn that was a mistake.
Chrome Dome
An upgraded robotic foot ninja created using Chris Bradford's armor, first sent out to hunt down April.
- A.I. Is a Crapshoot: Created for Karai to destroy April, but the Kraang put in an override program to capture her instead. It later malfunctions, and starts trying to destroy everyone in sight instead.
- Elite Mooks: In the fourth season, the Chrome Dome design is improved upon and mass-produced.
- Energy Weapon: Whips, chucks, and swords.
- Eye Beams: Uses these to bisect the manhole covers shot at it by the Shellraiser.
- Flight: Via Rocket Boots.
- Impaled with Extreme Prejudice: Defeated when Mikey impaled it with its own Laser Blade, and later again by Karai.
- King Mook: Far more advanced than the Footbots, and based on Bradford's old armor instead of the standard Foot uniforms. It gives the team a hell of a fight.
- Mythology Gag: Named after Chromedome from the 1987 series.
- Palette Swap: It's pretty clearly the human Bradford in his ninja garb, but with some minor alterations in color and proportion.
- Robot Me: Of Bradford, pre-mutation.
The Foot Cultists
Creatures from the sewers who have complete loyalty to the Shredder and assist Tiger Claw and Kavaxas in their quest to revive Shredder in the fifth season. What started as a fight between Splinter and Super Shredder caused some of the latter's mutagen to leak into the sewers where a hobo touched the mutagen and mutated into the first Foot Cultist and soon spread the effect to other people, all with Shredder's memories.
- And Then John Was a Zombie/Asteroids Monster: Ordinary people touching Super Shredder's mutagen is what makes them multiply.
- Canon Foreigner: They were created for the series.
- Cult: They're more or less the Cult of Shredder and literally worship him.
- Expy: With the reveal that they were New York sewer-dwelling homeless people mutated into Humanoid Abominations by toxic waste (in this case Super-Shedder's mutagen-infused blood), they are a reference to the monsters from C.H.U.D..
- Invincible Minor Minion: These monsters are the toughest terrestrian mooks the Turtles have fought up to the fifth season, able to catch the Turtles' weapons and survive long falls.
- Religion of Evil: The Foot Cultists are devoted solely to Shredder and Tiger Claw, worshipping the former.
- Weakened by the Light: For all of their combat abilities, bright light is enough to keep them away.
- What Happened to the Mouse?: The Foot Cultists are never seen again after Fishface chases them off with the light of his lantern. There is no mention of what happened to them after Kavaxas and Shredder are send back to the Netherworld and Tiger Claw forms a truce with the Turtles, nor are there any plans discussed to change them back into regular people.
Hattori Tatsu
Click here for him unmasked
Voiced by: Michael Hagiwara
A swordsman who comes to New York after Shredder's death to recover the Kuro Kabuto and take over the Foot Clan.
- Adaptational Badass: Compared to his live action movie counterpart, this version of Tatsu proved to be far more dangerous.
- Antagonist Title: Tatsu is the titular character in "The Forgotten Swordsman".
- Back for the Dead: His spirit returns along with sorcerer Ho Chan to attack one half of the Hamato Clan's forces in "End Times". Unlike Ho Chan, who had to be confronted by Splinter's spirit, Tatsu's spirit is quickly disposed of by April, Casey, Donnie, and Raph.
- Big Bad Ensemble: He tries to form a Foot Clan separate from Tiger Claw's by claiming the Kuro Kabuto. Too bad he was killed off in his first episode.
- Big Bad Wannabe: He had all the making of being a powerful Big Bad, and was one of the Turtles' deadliest foes. Unfortunately, Kavaxas proves to be more dangerous, and Tatsu was quickly killed by the demodragon within seconds.
- Blind Weaponmaster: See Handicapped Badass below.
- Canon Immigrant: He is a character who was introduced in the 1990 live-action film, and makes his animated debut here.
- Composite Character: He is derived from the 1990's film character, as the Shredder's right hand man who tries to take control of the Foot Clan following Shredder's defeat. This also brings forth traits from previous versions of Karai, as he comes from Japan to try to take over the New York Foot Clan.
- Disabled in the Adaptation: Tatsu was of clear sight in the 1990 film, but is blind in this adaptation.
- The Dragon: He mentions that he was once the Shredder's right-hand man back in Japan.
- Not to mention, his name also means "dragon" in Japanese.
- Dragon Ascendant: He's gunning for this, trying to start a new Foot Clan in the wake of Shredder's death. Tiger Claw, however, has a trump card in Kavaxas.
- Evil Laugh: Gives off a pretty good one when he returns as a spirit in "End Times".
- Eviler than Thou: For all of Tatsu's skills, he is hopeless against Kavaxas when the demodragon plays this trope on him, though Snake Karai having pummelled him through bites did not help his chances of not being killed by Kavaxas.
- Handicapped Badass: Tatsu is blind, but one of the best swordsman in the world.
- Logical Weakness: Tatsu relies on his sense to compensate for his blindness. Leo and Karai take advantage of this by setting off several explosions using Casey's pucks and attacking while he is vulnerable.
- Mythology Gag: He uses a sword in this adaptation. His original actor, Tobishiro Obata, was a professional swordsman.
- Named by the Adaptation: This Tatsu is given a first name, Hattori.
- So Last Season: The guy is basically a Suspiciously Similar Substitute to the pre-mutated Shedder. While he still manages to beat down the Turtles and their allies in the same manner as Shredder, they were able to defeat to him in the end, showing how much stronger our heroes have gotten. After his defeat he is shortly killed off by the true main threat of the fifth season.
- They Killed Kenny Again: Downplayed, as he never really comes back to life, he just returns as a spirit. But he is destroyed in both of the only two episodes he appears in. The first time, as a human, and then again as a spirit a couple episodes later when he tries to attack the Hamato Clan.
- Too Powerful to Live: Tatsu is easily as powerful as Shredder himself, mopping the floor with the Turtles, Karai, Shinigami, and Bradford and Xever. He's quickly killed at the end of his first episode.
- We Can Rule Together: He offers Bradford a place in his new Foot Clan as his second in command, and is notably the only member of the Foot Clan that he encounters who is granted such kindness. Bradford refuses, deciding to remain loyal to the Shredder.
- We Hardly Knew Ye: Kavaxas takes his soul at the end of his first episode.
- The Worf Effect: He shown to be as strong as the pre-mutated Shedder, and was to able fight off the Turtles, Karai, Shinigami, April and Casey. However, he was quickly killed off by Kavaxas, just to show how much more dangerous the demodragon is in comparison. Granted, thanks to Karai, he was already injured when he was confronted by Kavaxas.
- Your Soul Is Mine!: He's the victim of this trope courtesy of Kavaxas.
The Vizioso Mafia
Don Vizioso
Voiced by: Brian Bloom
The Don of New York's Italian mafia, who agrees to fold to the Foot Clan. After Shredder is put on life support halfway through the fourth season, Vizioso, now no longer affiliated with the Foot Clan, attempts to take control of the city's crime business.
- Adipose Rex: He's a grossly obese gang lord who controls enough turf that Shredder meets with him personally to bring him to heel.
- Affably Evil: Pretty cordial with Shredder, and once he joins the Foot Clan, affably asks how he can be of service to the Shredder.
- Arch-Enemy: Donnie regards him as this due to his bigotry against mutants and attempting to vivisect him.
- Big Bad Ensemble: In Seasons 4-5. With the Shredder incapacitated and later dead, the Don steps up to make his bid for power separate from Shredder’s Foot Clan.
- Big Bad Wannabe: This trope was even in effect before he became an independent villain. Shredder was quickly able to scare him into submission in season three. His later attempts to take control of New York's underbelly in Seasons 4 and 5, while still dangerous, are no match for the Hamato Clan when it comes down to it.
- Big Eater: He is never seen not eating something, usually in massive portions.
- Canon Foreigner: He was created for the series.
- Crazy-Prepared: His chair in his restaurant turns out to be a jetpack chair, which he uses to attack and escape the Turtles and Mutanimals when they confront him.
- The Don: Obviously. In Season 4 he starts getting addressed as “the Don” by the heroes.
- Evil Virtues:
- Camaraderie. As much of a slob and a prick he is, it's pretty clear that his subordinates genuinely respect him (unlike the Shredder, who rules over his minions with fear).
- Patience. While it is clear that he hates being under the Shredder's thumb, he's smart enough to kiss his ring (metaphorically speaking) and stay out of his way, waiting it out until the Shredder is out of the way before going back to running the streets.
- Resourcefulness. Despite being an old-fashioned gangster in an age of mutants, aliens and ninjas, Vizioso is shown to be good enough at old-fashioned crime that he was still able to remain active in New York, finding opportunities in the fallout of the Kraang invasion possessing the right contacts and resources to create a weapons to fight against mutants.
- Expy: He's more or less the show's answer to Jabba the Hutt: an obese, disgusting gang lord antagonist who even revolts the Big Bad.
- Fantastic Racism: He despises mutants enough that he arms his men with anti-mutant weaponry.
- Fat and Proud: Implied, he’s got a big fancy painting of himself practically nude in his dining room, suggesting he’s very proud of and enjoys his colossal size as a symbol of his wealth and power that’s gotten him so fat.
- Fat Bastard: Casually remarks that the devastating Kraang invasion has brought new opportunities for gang lords like him and the Shredder, and is also hugely fat.
- Fat Slob: Definitely, he has horrible table manners.
- I'm a Humanitarian: It's implied that he plans to eat Shredder's heart, believing it would give him his powers.
- Jabba Table Manners: He's got atrocious manners, and even spits up a meatball he hadn't chewed before speaking to Shredder.
- Know When to Fold 'Em: One quick gesture from Shredder regarding a sliced meatball is all it takes for Vizioso to cede control of his empire to Shredder. When his favorite leg-breaker is coldly and messily killed by a Satanic demon, he decides to give up on New York and move his operation back to Italy.
- Mythology Gag: Seems to be based on the 80’s character Blobfather, though he never mutates and his blob nature remains because of his fat.
- Screw This, I'm Outta Here: After Kavaxas kills the Hammer and deals his mob a nasty defeat, Vizioso decides to move his operation to Italy and leave New York for good.
- Small Name, Big Ego: Downplayed. The Don thinks he’s a huge, intimidating threat, but he’s really only just huge for the most part. He’s cunning and powerful enough to run a normal mafia in a city of aliens and mutants, but he’s ultimately no match for the powers that be despite his ego.
- Trademark Favorite Food: Being an Italian-American Mafia don, he has a predisposition towards Italian Food, stuffing his face with spaghetti, calzones, Italian sausage, etc.
- Unusually Uninteresting Sight: While the rest of the city is still recovering from the Kraang invasion and mass mutation, Vizioso has brushed himself off and gone right back to ruling the mob. He's also pretty unfazed by having to deal with a mass-murdering ninja master and his army of robots and mutants. He finally reaches his limit in Season 5 when the powers he’s dealing with get too occult and dangerous, and he decides to head back to Italy.
- Villainous Glutton: He's always seen eating, be it a large table of Italian food, or an endless stream of concession snacks and takeout.
- Villainous Widow's Peak: He's got one.
The Fulci Twins
Voiced by: Eric Bauza
Don Vizioso's bodyguards and henchmen who work as tentative allies and hired guns for the Foot Clan.
- Always Identical Twins: This are no differences for these identical twin brothers.
- Canon Foreigner: They were created for the series.
- Coordinated Clothes: Both wear the standard mobster three piece suit.
- Villainous Widow's Peak: As if being mobsters aligned with the Foot Clan wasn't enough of a clue.
The Hammer
"Hey-yo"
Voiced by: Eric Bauza
A bombastic heavy-hitter for the Visioso mafia.
- Canon Foreigner: He was created for the series.
- Character Catchphrase: "Hey-yo"
- Family-Unfriendly Death: His death at the hands of Kavaxas is not a pretty one, as evidenced by a shot of his body afterwards.
- Killed Off for Real: His soul is drained from him by Kavaxas in "Heart of Evil"
- No Name Given: He is never referred to by his real name.
- No Celebrities Were Harmed: He looks (and sounds) alot like Sylvester Stallone.
- Not Quite Dead: He is crushed by a chandelier in "Heart of Evil", but is later shown to have survived. However, he later is actually killed in the episode.
- Your Soul Is Mine!: Loses his life via this trope to Kavaxas in "Heart of Evil" the same way Hattori Tatsu did one episode earlier.
