Billy West

as Ren / Stimpy (voice)

as Sigge (voice)

as Sorcerio (voice)

as Muttley / Tiny (voice)

as Bashful (voice)

as Lunk, Gobba, Balk

as Howie / Jack A. Lopez (voice)

as Elmer Fudd (voice)

as Ellyvan (voice)

as Dispatcher (voice) / Guide-Bot (voice)

as Leprechaun (voice), Geek Monster #1 / Hollis (voice), Terry / Pilot #2 (voice)

as Gollum (voice), Dog (voice)

as Stimpy (voice)

as Muscle Cell (voice)

as Mooshu (voice)

as George Klimer (voice)

as Woody Woodpecker (voice)

as Fry / Professor Farnsworth / Zoidberg / Zapp Brannigan (voice)

as Marketing Guy (voice), Pointy-Haired Boss's Boss (voice)

as Chit Chatterson (voice)

as Rancid Rabbit (voice)

as Tex Avery / Sagebrush Sid / Freddy the Fly (voice)

as Cur / Lar / Mo (voice)

as Announcer (voice)

as Slimer (voice)

as (voice)

as Doug Funnie (voice)

as Ren / Stimpy (voice), Stimpy (voice), Ren (voice)