Dan Castellaneta

as Alan Frakesh

as Thing One / Thing Two (voice)

as Homer Simpson / Itchy / Barney / Abe Simpson / Stage Manager / Krusty the Clown / Mayor Quimby / Mayor's Aide / Multi-Eyed Squirrel / Panicky Man / Sideshow Mel / Mr. Teeny / EPA Official / Kissing Cop / Bear / Boy on Phone / NSA Worker / Officer / Santa's Little Helper / Squeaky-Voiced Teen (voice)

as Mr. Kenny

as Homer Simpson / Grampa Simpson (voice)

as Male Fan

as Auctioneer / Horse Trader (voice)

as Izzy

as Carlson

as Slick Moeller

as Genie (voice)

as Narrator (voice)

as Additional Voices (voice)

as Homer Simpson (voice)

as Man in Chair

as Homer Simpson / Barney Gumble (voice)

as Homer Simpson (voice)

as Priest (voice)

as Diane's Teacher (uncredited)

as Maitre D'

as Guard #1 (voice)

as Tall Customs Dog / Angel Dog #1 (voice)

as Grandpa (voice)

as Mr. Mysterio / Woodenleg Wally (voice)

as Animated Babysitter (voice)

as Grandpa 'Steely' Phil / Nick Vermicelli (voice)

as Partlow

as BoE Agent #2 (voice)

as Homer Simpson (voice)

as The Robot Devil (voice)

as Man Test Driving Car

as Stretch (voice)

as Phil

as Homer Simpson / Aristotle Amadopolis (voice)

as Bumpkin

as Brian

as De Mille

as Homer Simpson (voice) (uncredited)

as Aaron Spelling

as The Postman (voice)

as Homer Simpson

as Homer Simpson (voice)

as Homer Simpson (voice) (uncredited)

as Homer Simpson / Abraham 'Grampa' Simpson (voice)

as Count Dracula (voice)

as Nicholas LaPorte (voice)

as Professor Crank (voice)

as Genie (voice)

as Wild Bill Hickok / Clerk / Cheyenne #2 (voice)

as Homer (voice)

as Alan Winsdale

as Gary

as Dick

as Milt Fields

as Sam

as Grandpa (voice)

as Homer Simpson (voice)

as Aaron Spelling

as Jim Orr

as George Agrande

as Neal

Cast

Cast

as Self

as Iron Shoes / Priest (voice)

as Homer Simpson / Willie / Grampa Simpson/ Kodos/ Various (voice)

as Grandpa Phil / Additional Voices (voice)

as Dr. Seymour

as Megavolt (voice)

as Dan the Bookie

Cast

as Megavolt (voice)

as Homer Simpson / Grampa Simpson (voice)

as Voodoo Man (voice)

as Homer Simpson (voice)

as Human Cannonball

as Gordon Johnson/Bryan Lynn

as Grandpa Phil (voice)

Cast

as Various Characters

as Comet / Blitzen (voice)

as Homer Simpson (voice)

as Self

as Salesman