Jason Biggs Leonardo Voice Sean Astin Raphael Voice Greg Cipes Michelangelo Voice Rob Paulsen Donatello Voice Mae Whitman April O'Neil Voice Hoon Lee Master Splinter Voice Kevin Michael Richardson Shredder Voice Nolan North The Kraang Guest Voice Brian Bloom Captain Ryan Guest Voice Scott Menville Crankshaw Guest Voice Keith Silverstein Kirby O'Neil Guest Voice Michael Chang Director Joshua Sternin Writer Jennifer Ventimilia Writer Peter Hastings Executive Producer Ciro Nieli Executive Producer MacGregor Middleton Producer