Thomas/The Simpsons (Duck/Percy version)

Cast

 * Thomas as Homer
 * Belle as Marge
 * Duck as Bart
 * Lady as Lisa
 * Madge as Maggie
 * Fergus as Grandpa Abe
 * Porter as Ned Flanders
 * Daisy as Maude Flanders
 * Henry as Tod Flanders
 * Gordon as Todd Flanders
 * Bill as Lenny
 * Ben as Carl
 * BoCo as Barney
 * City of Truro as Moe
 * Diesel as Mr. Burns
 * Wilfred (from RWS) as Mr. Smithers
 * Flying Scotsman as Principal Skinner
 * Mavis as Agnes Skinner
 * Mallard (from RWS) as Groundskeeper Willy
 * Duncan as Superintendent Chalmers
 * Ernest (from RWS) as Milhouse
 * Stanley as Martin Prince
 * Arry as Nelson
 * Bert as Jimbo
 * Den as Kearney
 * Dart as Dolph
 * Colin as Krusty the Clown
 * Harold as Sideshow Mel
 * Spencer as Sideshow Bob
 * Toby as Chief Wiggum
 * Billy as Lou
 * Edward as Eddie
 * George as Snake Jailbird
 * The Big City Engine (from RWS) as Dr. Hibbert
 * Sidney as Comic Book Guy