Sonic/The Cat in the Hat


 * Shadow as The Cat in the Ha
 * Cream as Joan
 * Amy Rose as Sally
 * Sonic as Conrad
 * Dr. Robotnik (from SATAM) as Larry
 * Heavy and Bomb as Thing #1 and Thing #2
 * Big Grizz/Big Mike as Mr. Hank
 * King Acorn as Narrator
 * Espio as Announcer
 * Rouge as Mrs. Kwan
 * Buster (from Toy Story 2 and 3) as Nevin
 * Robot the Robot as Locker
 * Robotnik Jr. as Fish
 * Knuckles as Sonic (cameo)
 * Chris as Tails (cameo)
 * Gordon (from Thomas and Friends) as Knuckles
 * Antoine as Mario (cameo)