Regular Show/An American Tail

Cast

 * Rigby as Fievel
 * Mordecai as Tony Topini
 * Were Skunk as Warren T. Rat
 * Dr. Wrecker (from The Amazing World of Gumball) as Cat R. Waul
 * The Robber (from The Amazing World of Gumball) as Chief McBrusque
 * Susan as Madame Mousey