Groundskeeper Willy/Thomas

Cast

 * Grouskepper Willy as Thomas
 * Radioactive Man as Edward
 * Apu as Henry
 * The Yes Guy as Gordon
 * Rainer Wolfcastle as James
 * Eddie as Percy
 * Dr. Nick as Toby
 * Dr. Hibbert as Duck
 * Bill & Marty as Donald & Dougals
 * Kirk Van Houton as Oliver
 * Russ Cargill as Diesel
 * Lenny as Bill
 * Carl as Ben
 * Martin as BoCo
 * Lulcie as Daisy
 * Helen Lovejoy as Mavis
 * Uter as Stepney
 * Edna Krapple as Emily
 * Lou as Bertie
 * Kent Brockman as Salty
 * Grandpa Abe as Havery
 * Kang as Arry
 * Kodos as Bert
 * Homer as Fergus
 * Sideshow Mel as Skarloey
 * Professor Frink as Rheneas
 * Coach Krupt as Sir Handal
 * Jasper as Peter Sam
 * Moe as Duncan
 * Lisa as Lady
 * Sideshow Bob as Diesel 10
 * Legs as Splatter
 * Louie as Dodge
 * Wendell as Terence
 * Cletus as Trevor
 * Chief Wiggum as Derek
 * Superintendent Chalmers as Bulgy
 * Jacquard Bovier as Elzabeth
 * Comic Book Guy as George
 * Harns Moleman as Murdoch
 * Snake Jailbird as Spencer
 * Allison Taylor as Caroline
 * Mr. Burns as Smudger
 * Frank Grimes as Bulstord
 * Sarah Wiggum as Molly
 * Artie Ziff as D261
 * Agnes Skinner as Flora
 * Principal Skinner as Hank
 * Ralph as Whiff
 * Bart as Charile
 * Millhouse as Billy
 * Frank Grimes jr. as The Spiteful Breakvan
 * Barney Gumble as Hiro
 * Ned Flanders as Flynn
 * Maude Flanders as Belle