Sonic/Captain Underpants

Cast

 * Sonic as George
 * Tails as Harold
 * Knuckles as Captain Underpants
 * Shadow as Melvin Sneedly
 * Dr. Ivo Robotnik as Mr. Krupp
 * Eggman Nega as Professor Poopypants
 * Snively as Dr. Diaper
 * Rouge as Mrs. Ribbles
 * Breezie as Mrs. Anthrope
 * Lucas as Tim Bronski
 * Rotor as Stevie Loopner
 * Sally as Jessica Gordon
 * Espio as Mr. Fyde
 * Amy as Stephanie Yarkoff
 * Dr. Warpink as The Bionic Booger Boy
 * Uncle Chuck as Mr. Rustworthy
 * Cheese as Sulu
 * Chocola as Crackers
 * Scourge as Captain Blunderpants
 * Scratch as Evil George
 * Grounder as Evil Harold
 * Decoe as Robo-George
 * Bocoe as Robo-Harold
 * Bokkun as Dinosauar