Nickelodeon will debut the all-new, CG-animated series Teenage Mutant Ninja Turtles. The 26-episode, half-hour action-comedy series breathes new life into the wildly popular band of reptile brothers played by Jason Biggs (American Pie) as "Leonardo," Sean Astin (Lord of the Rings) as "Raphael," Greg Cipes (Teen Titans) as "Michelangelo" and Rob Paulsen (Planet Sheen) as "Donatello" (Paulsen also voiced the original "Raphael" from 1987-1996 in the very first TMNT series). Rounding out the cast in the series' key roles are: Mae Whitman (Parenthood) as "April O'Neil," a gutsy and independent sixteen-year-old who befriends the Turtles after they save her from an alien attack; Hoon Lee (Royal Pains) as "Master Splinter," the Turtles' sensei and father figure and Kevin Michael Richardson (Penguins of Madagascar) as "Shredder," the commander of an evil ninja army called the Foot Clan and one of the deadliest martial artists in the world. Nickelodeon's Teenage Mutant Ninja Turtles begins as the turtles emerge from their hidden lair in the sewers for the very first time, ready to confront the wondrous and hostile world of New York City and face enemies more dangerous and pizza more delicious than anything they could have imagined. Funnier and with more Ninjutsu than ever before, the show will explore the companionship of four teenage brothers learning to rely on themselves and one another as they unravel the mystery of their existence and grow to become the heroes in a half-shell that they are destined to be.