Raph: A mutated turtle, exuberant, and passionate, has an impulsive streak. Acutely aware of his self-appointed status as the leader. Has a valiant attitude.
Mikey: A mutated turtle, wild and colorful, an artist and spends his time tagging the Turtles' lair and his shell with graffiti.
Donnie: can be argumentative, contradicting others' viewpoints with his own and insistently trying to convince others that he is correct. He is especially committed to his opinions on science.