- Seth Green (Leonardo (voice))
- Rob Paulsen (Donatello (voice))
- Sean Astin (Raphael (voice))
- Greg Cipes (Michelangelo (voice))
- Mae Whitman (April (voice))
- Josh Peck (Casey Jones (voice))
- Kelly Hu (Karai)
- Gwendoline Yeo (Shinigami)
Teenage Mutant Ninja Turtles — S2E16
Episode: The Lonely Mutation of Baxter Stockman
Air Date: 2014-05-04
Runtime: 22 min
Overview
The Turtles create a retro-mutagen to help April's father; Baxter Stockman threatens to mutate April.