Kevin Michael Richardson as Shredder (voice)
Episodes 62
New Friend, Old Enemy
To prove that Turtles can be friends with humans, Michelangelo uses a social networking site to befriend a famous martial artist who is secretly Shredder's top lieutenant.
Read MoreNever Say Xever
Leo fears his act of mercy has come back to haunt him when Xever holds a local noodle shop owner hostage.
Read MoreThe Gauntlet
After April receives a warning from her imprisoned father, she and the Turtles embark on a mission to save him and stop The Kraang from detonating a mutagen bomb in the city.
Read MorePanic in the Sewers
The Turtles must defend their home in the sewers when Chris Bradford tries to destroy it with a dangerous chemical.
Read MoreMousers Attack!
When simultaneous threats from the Purple Dragons and Baxter Stockman’s mechanical Mousers force the Turtles to split into two groups, Donnie & Mikey must prove that their “B Team” is just as valuable as Leo & Raph’s “A Team.
Read MoreNew Girl in Town
Snakeweed returns and begins abducting people. Tired of Raphael's constant criticism while trying to stop Snakeweed, Leonardo lets Raphael try his hand at leadership. While away from the group, Leonardo meets a female Foot Ninja named Karai, who tries to lure him to the dark side.
Read MoreThe Mutation Situation
The Turtles discover that the Kraang survived their previous showdown and have dropped mutagen canisters all over New York City.
Read MoreInvasion of the Squirrelanoids
While tracking mutagen, the Turtles bring a mutated squirrel back to the lair. When it starts multiplying, the Turtles must hunt the squirrel mutants and prevent them from escaping into the city.
Read MoreFollow the Leader
The Turtles face an army of robot foot soldiers; Karai captures Leonardo and forces him to do battle with ninjas that can adapt to his every move.
Read MoreMutagen Man Unleashed
Donatello experiments with mutagen in an attempt to find a cure for April's mutated father. But one of his expirements goes wrong and he is unleashed in the city.
Read MoreMikey Gets Shellacne
Michelangelo plays with some mutagen, contracting a dangerous infection that mutates out of control.
Read MoreTarget: April O'Neil
April tries to resume her normal life; April realizes that she may have put her friend in jeopardy when Karai starts hunting her again.
Read MoreSlash and Destroy
The Turtles find themselves being hunted by a new threat -- another mutant turtle called Slash, who has a personal vendetta against the brothers.
Read MoreThe Good, The Bad, and Casey Jones
After encountering mutants and ninjas, Casey Jones decides to take on "pure evil" alone. When he meets Raphael, the two hot-headed fighters must put their dislike for each other aside and work together against a common foe.
Read MoreThe Kraang Conspiracy
April feels left out and insists on joining the Turtles on a mission to TCRI; A secret about April's past is revealed...
Read MoreFungus Humungous
A fungus mutant spreads through the sewers causing the Turtles to experience their worst fears. Leonardo must face his greatest fear.
Read MoreMetalhead Rewired
After Donnie upgrades Metalhead's artificial intelligence, he must decide if he can trust a sentient Metalhead.
Read MoreOf Rats and Men
When the Rat King returns, Splinter must overcome his fears in order to defeat his enemy.
Read MoreThe Manhattan Project (1)
Leonardo considers asking Splinter for help while facing Shredder's new assassin; Donnie must put aside his rivalry with Casey in order to uncover a Kraang plot.
Read MoreThe Manhattan Project (2)
Leonardo considers asking Splinter for help while facing Shredder's new assassin; Donnie must put aside his rivalry with Casey in order to uncover a Kraang plot.
Read MoreMazes & Mutants
When the turtles play a Fantasy LARP game to get their minds off things, they separate the difference between fantasy and reality.
Read MoreThe Lonely Mutation of Baxter Stockman
The Turtles create a retro-mutagen to help April's father; Baxter Stockman threatens to mutate April.
Read MoreNewtralized!
Raphael is worried about Casey's ability to handle big mutant threats especially when they meet Slash again and discover he has a partner of his own, the Newtralizer.
Read MorePizza Face
Mikey struggles to convince the others that a new mutant is trying to attack and capture people using living pizzas.
Read MoreThe Wrath of Tiger Claw
When Tiger Claw returns, he vows to hunt and destroy the turtles, as well as April and Casey. Meanwhile, Karai finds out the truth about her mother and real father, forcing her to make a life changing decision.
Read MoreThe Legend of the Kuro Kabuto
Leo tries to convince the team to rescue Karai; a master thief steals Shredder’s helmet.
Read MorePlan 10
Raphael accidentally damages a machine that forces him to swap minds with a Kraang. Now he must find a way to convince his brothers and Splinter that it's really him, before the Kraang controlling his body destroys his brothers or worse, reveals their location to the rest of the Kraang.
Read MoreVengeance is Mine
Leo stages a rescue for Karai against Splinter's wishes. While the mission is a success, Karai's knowledge of the truth makes her rush out to take her revenge on Shredder for killing her mother and lying to her for so long, leading to an unexpected turn of events.
Read MoreA Chinatown Ghost Story
Donnie becomes increasingly jealous of April and Casey's relationship; April is kidnapped by an evil spirit who intends to drain her powers.
Read MoreInto Dimension X!
When the Turtles go to the bizarre realm of Dimension X, Mikey is the only one who can figure the place out.
Read MoreThe Invasion (1)
Leo and Donnie disagree about their plan to stop the Kraang invasion; Donnie must step up as the leader of the bunch when Leo makes a mistake and is separated from the team.
Read MoreThe Invasion (2)
Leo and Donnie disagree about their plan to stop the Kraang invasion; Donnie must step up as the leader of the bunch when Leo makes a mistake and is separated from the team.
Read MoreVision Quest
Leo takes the Turtles to train in the woods in an advanced ninja ritual; the Turtles must overcome their weaknesses and face their enemies to become a true ninja.
Read MoreSerpent Hunt
As the Turtles search for Karai, they are forced to deal with a city filled with Kraangdroids as well as Zeck and Steranko.
Read MoreCasey Jones vs the Underworld
Casey Jones thinks he can take on the criminal underworld on his own, but soon discovers that he is in over his head.
Read MoreClash of the Mutanimals
The Shredder kidnaps and experiments on the Mighty Mutanimals.
Read MoreBeyond the Known Universe
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The Moons of Thalos 3
The Turtles and their enemy crash-land on an ice moon and they must put aside their differences in order to survive.
Read MoreThe Weird World of Wyrm
Casey releases a wish-granting alien named Wyrm, who wants his freedom to do whatever he wants to the universe
Read MoreThe Outlaw Armaggon!
A shark-like bounty hunter is hired by Lord Dregg to destroy the turtles, who choose to hide out in an abandoned space station.
Read MoreRiddle of the Ancient Aeons
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Journey to the Center of Mikey's Mind
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The Arena of Carnage
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The War for Dimension X
The Turtles must gain the trust of the Utrom Council in order to find the next piece of the black hole generator.
Read MoreThe Cosmic Ocean
The Turtles journey through an ocean-like area of space.
Read MoreTrans-Dimensional Turtles
The Turtles are transported to another dimension where they meet their 1980s counterparts and work together to battle Krang.
Read MoreRevenge of the Triceratons
Donatello is feeling inferior to Fugitoid, but his intellect is put to the test when the Triceratons attack.
Read MoreThe Evil of Dregg
When Raphael loses his fighting mojo, he must overcome his feelings to save his brothers from certain doom.
Read MoreThe Ever-Burning Fire
The team must overcome impossible odds in order to obtain the final Black Hole Generator piece that is located on the planet Magdomar.
Read MoreEarth's Last Stand
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City at War
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Broken Foot
When Leonardo secretly allies himself with Karai, he gets himself into deeper danger than he could have realized.
Read MoreThe Insecta Trifecta
Raphael must overcome his fear of insects to lead the team when they are forced to battle Stockman-Fly's new insect minions.
Read MoreMutant Gangland
Don Vizioso's gang tracks the Turtles with a slew of Anti-Mutant weapons.
Read MoreBat in the Belfry
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The Super Shredder
For the first time, the Turtles encounter something they cannot defeat – the Super Shredder!
Read MoreDarkest Plight
The Turtle team hunts for their Sensei, but soon realizes they are being hunted as well.
Read MoreThe Power Inside Her
Donatello becomes concerned and decides to test April, only to discover that her psychic abilities are rapidly growing in power.
Read MoreTokka vs. the World
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Tale of Tiger Claw
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Requiem
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