Harry Shearer

as Seymour Skinner (voice)

as Ned Flanders (voice)

as Derek Smalls

as Mr. Burns (voice)

as Gene

as Self

as Self

as Scratchy / Mr. Burns / Rev. Lovejoy / Ned Flanders / Lenny / Skull / President Arnold Schwarzenegger / Kent Brockman / Principal Skinner / Dr. Hibbert / Smithers / Toll Booth Man / Guard / Otto / Kang (voice)

as Victor Allan Miller

as Dog Announcer (voice)

as Mark Shubb

as Ned Flanders / Dr. Julius Hibbert / Rev. Timothy Lovejoy (voice)

as G. Gordon Liddy

as Charles Caiman

as Chuck

as Handsome Dan

as Derek Smalls / Mark Shubb

as Derek Smalls

as Sammy Rhodes

as Julius Monosoff

as Guido Finucci

as Carl Sagan (voice)

as Simon Feck

as Additional Voices (voice)

as Derek Smalls

as Bernie Wepner

as Keen Hacksaw / Mayor of Animal Olympic Island / Burnt Woody / Mark Spritz (voice)

as Narrator (voice)