Leonardo, Donatello, Raphael and Michelangelo, four anthropomorphic turtle brothers trained in ninjutsu who fight evil in New York City.

• Leonardo: Team leader who wears a blue mask and wields twin katanas.
• Donatello: Tech genius who wears a purple mask and fights with a bō staff.
• Raphael: Fierce brawler who wears a red mask and brandishes twin sai.
• Michelangelo: Free-spirited prankster who wears an orange mask and uses nunchaku

• Master Splinter: Mutated rat sensei who serves as the turtles' adoptive father and martial arts teacher.
• April O'Neil: Courageous news reporter/computer programmer who acts as the turtles' primary human link to the surface world.
• Casey Jones: Vigilante ally who fights street crime using sports equipment like hockey sticks.
• The Shredder: Leaders of the evil Foot Clan ninja organization and the turtles' ultimate nemesis.
• Krang: Alien brain-like warlord from Dimension X who frequently allies with Shredder