The Toothless Dum Show: The Harum-Scarum Sanitarium

Cast

 * Flim-Flam - Gumball (The Amazing World of Gumball)


 * Scooby-Dum - Toothless (How to Train Your Dragon)


 * Scrappy-Doo - Spike (My Little Pony: Friendship is Magic)


 * Scrappy-Dum - Pikachu (Pokemon)


 * Dr. Tooksbury - The Pink Panther


 * Cuddles and Schoonkums as Themselves


 * Officer Oldfield - Chief McBrusque (An American Tail 3)


 * The Mad Doctor - Dagnino (El Arca)


 * The Sheriff - Tigger (Winnie the Pooh)