as Homer Simpson / Kodos / Krusty the Clown / Sideshow Mel (voice)

as Homer Simpson / Grampa Simpson (voice)

as Homer Simpson (voice)

as Homer Simpson (voice)

as Sam

as Homer Simpson (voice)

as Homer Simpson (voice)

as Homer Simpson / Barney Gumble (voice)

as Homer Simpson

as Homer Simpson

as Patrick Senior

as Ted Boseman

as Needum Taylor

as Grandpa (voice)

as Homer Simpson / Aristotle Amadopolis (voice)

as Duke Yipkowski (voice)

as Homer Simpson (voice)

as Homer Simpson / Grampa Simpson (voice)

as Aaron Spelling

as Mr. Kenny

as Homer Simpson (voice)

as Homer Simpson (voice) (uncredited)

as Ray Winters

as Peter Oliver

as Marty

as Izzy

as Dr. McNally

as Gary

as Judge Markway

as Derry Murbles

as Dr. Harvat

as Jenna

as The Robot Devil (voice)

as Dr. Seymour

as Carlson

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 Dan the Bookie

as Iron Shoes / Priest (voice)

as De Mille

as Self

as Dr. Milton Hastings

as Mr. Mysterio / Woodenleg Wally (voice)

as Alan Frakesh

as Stretch (voice)

as Jim Orr

as Dick

as Boris / Captain Howdy / Coluans (voice)

as Homer (voice)

as Genie (voice)

as Milt

as Frank Whitaker

as Officer Novarro

as Mr. Ramish

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

as Aaron Spelling

as Nicholas LaPorte (voice)

as Dr. Kinny

as Jeff Bicks

as Mr. Horner / Franklin the Frog (voice)

as Wesker / Scarface (voice)

as Scarface (voice)

as Professor Crank (voice)

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

as BoE Agent #2 (voice)

as Thing One / Thing Two (voice)

as Human Cannonball

as Morty / Bank Manager

as Dr. Stein

as Jonathan / Phone Caller / Sailing Instructor (voice)

as Auctioneer / Horse Trader (voice)

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

as Additional Voices (voice)

as Tiny Werner

as Professor Crank (voice)

as Mr. Geminini (voice)

as Goon (voice)

as Private Cleoutus Dobbs / Baxter (voice)

as Officer McBride / Police Officer (voice)

as Milt Fields

as Guard #1 (voice)

as Kaznian Astronaut / Socialite / Photographer (voice)

as Minister / Guard (voice)

as Dunkirque (voice)

as Priest (voice)

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

as Self

as Elf 2 (voice)

as Walt

as Mr. Jumba (voice)

as Dave Bishop (voice)

as Mr. Bishop (voice)

as Minister (voice)

as AP-99 (voice)

as Hunter #1 / Hunter #2 / Lackey / Casey Kasemish DJ (voice)

as Mr. Zoop / Alnip (voice)

as Slam-bot / Fussy-Boy (voice)

as Brain Pod #13 (voice)

as Robot Sentry 1 / Robot Sentry 2 (voice)

as Senator Banda / Garron / Nifty Joe (voice)

as Resort Manager / Alien / Captain Alien (voice)

as The Postman (voice)

as Neal

as Guard (voice)

as Robot Devil (voice)

as Homer Simpson (voice)

as Homer Simpson / Abe Simpson / Barney Gumble / Krusty (voice)

as Kobra Commando (voice)

as Sven Jorgensen

as Partlow

as Agent Armstrong

as Homer (voice)

as Ticket salesman (voice)

as Additional Voice Talent (voice)

as Boney / Bureauocrates (voice)

as Homer / Nectar guy (voice)

as Bureauocrates (voice)

as Grandpa Phil / Additional Voices (voice)

as Bumpkin

as Comet / Blitzen (voice)

as Joe Spencer

as Earl (voice)

as Earl / Janitor #2 (voice)

as Earl (voice)

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

as Male Fan

as Count Dracula (voice)

as Grandpa Phil (voice)

as Bryan

as Dr. Harvey (voice)

as Grandpa Phil (voice)

as Nick Vermicelli (voice)

as Big Arnold (voice)

as Grandpa Phil / Nick Vermicelli (voice)

as Animal Control Officer (voice)

as Grandpa Phil / Reporter (voice)

as Grandpa Phil / Chicken Man (voice)

as Grandpa Phil / Cop #1 (voice)

as Delivery Man (voice)

as Grandpa Phil / Judge (voice)

as Grandpa Phil / Nolo (voice)

as Grandpa Phil / Grandpa Phil's Father / Jolly Olly Man (voice)

as Voodoo Man (voice)

as Alan Winsdale

as Man Test Driving Car

as Stan

as Earthworm Jim / Grim Reaper / Turns-His-Eyes-Inside-Out Boy / Evil Jim / Abraham Lincoln / Japius / Stock Broker

as Genie (voice)

as Slick Moeller

as Phil

as Megavolt (voice)

as Self

as Zoo Keeper

as Genie (voice)

as Homer Simpson (voice)

as Gordon Johnson/Bryan Lynn

as Homer Simpson (voice) (uncredited)

as Narrator (voice)

as Megavolt (voice)

as Self - Guest

as Darian Ferguson

as Voodoo Man / Muck Luck (voice)

as Stewart (voice)

as Brad

as Dracula (voice)

as Gus the Doorman

as Lazaar (voice)

as Rory O'Grady

as Mittens (voice)

as Professor (uncredited)

as Animated Babysitter (voice)

as Zabar (voice)

as Megavolt (voice)

as Emmett Brown (voice)

as Mr. Thickly (voice)

as Loudspeaker Announcer (voice)

as George Agrande

as Various Characters

as Prince Wudolph (voice)

as Dr. Zibaldo (voice)

as Harvey (voice)

as Jeffries (voice)

as George Wexler

as Man in Chair

as Maitre D'

as Diane's Teacher (uncredited)

as Homer Simpson (voice)

as Homer Simpson / Abe Simpson / Barney Gumble / Krusty (voice)

as Homer Simpson (voice)

as Pete

as Funeral Director

as Brian

as Salesman

as David Champion / Homer Simpson

as Steve Michaels