Who's that Ally
A Neapolitan Ice Cream Cat that lives in the freezer of the lair
Ice cream Kitty
Splinter allowed the turtles to explore the surface
Episode 1/ rise of the turtles
"Booya___!"
Kasha
The comic relief amongst the turtles
Mikey/Michelangelo
the leader of The Kraang
Kraang prime
an ally and friend to the Teenage Mutant Ninja Turtles. As of "City at War", she is a fully graduated kunoichi after having undergone intensive training with the Turtles' mentor and father figure
April O'Neil
The episode where Raphael's pet turtle became a mutant
Slash and Destroy/ Episode 33
"We're not Kung Fu frogs, __________"
We're Ninja Turtles!
The tech savvy turle who likes april o'neil
Donny/Donatello
the deadly and nefarious leader of the Foot Clan
Shredder
A human vigilante who is committed to hunting down mutant threats and criminals throughout New York City and very close friends to the turtles
Casey jones
Splinters death
103/ 4th season episode 25
“We're lean, we're green, and?”
we're mean!
The hot head who had a pet turtle and is the third oldest amongst the brothers
Raph/Raphael
a skilled assassin/bounty hunter from Japan who became one of Shredder's hench-mutants when Shredder came in search of recruits.
Tiger claw
who is caught in the middle between a fight between Hamato Yoshi and Oroku Saki. She was an anti hero/villainess in the first and two seasons when she believed that Saki was her father.
Karai
Karai found out that splinter is her biological father
The Manhattan Project/ 39 episode season 2
"Not the pizza guy! Take ______!"
Donnie
The Turtle that had 3 voice actors overall and one of them was seth green
Leo/Leonardo
Brazilian street thug who Shredder bailed out of prison named Xever Montes. He is now a mutant snakehead who is one of Shredder's hench-mutants, along with his partner, Rahzar.
Fish face
is a mystical witch, a old friend of Karai from Japan and a new ally of the Ninja Turtles who made her debut in City at War.
Shinigami
the character having wounded Leo's vocal cords in the aftermath of the battle in the Season 2 finale.
the foot clan
"You're right, Raph. That was the _______ ray talking."
anxiety
mutated pet turtle. In Slash and Destroy, he was exposed to some Ooze and became known as
Slash/Spike
He is an African American technological genius with an evil personality who formerly worked for T.C.R.I. in New York City, until he was fired from the place after being blamed for supposedly breaking a printer. Sometime afterwards, he started to serve The Foot Clan as a scientist for the clan
Baxter stockman