John Cleese

as Arthur William Dallas III

as Archie Vainglorious (voice)

as Frank

as John

as Otto von Walrus (voice)

as Donner (voice)

as General Eeder

as Chief Alien (voice)

as Bulldog (voice)

as Various (voice)

as Historical Montage Narrator (voice)

as King Harold (voice)

as Dreyfus

as Professor Kipple (voice)

as Professor Barnhardt

as Dr. Glickenstein (voice)

as King Harold (voice)

as Samuel the Sheep (voice)

as Dr. Primkin

as Mercury (voice)

as Grizzled Sergeant

as King Harold (voice)

as An Ape Named 'Ape' (voice)

as Mr. Munday

as James

as Nearly Headless Nick (Sir Nicholas)

as Q

as Donald P. Sinclair

as Narrator (segment 'The Nutcracker') (voice)

as Nearly Headless Nick

as The Giant Alien (voice)

as Albert the Magic Pudding (voice)

as Maurice Walpole

as Mr. Mersault

as An Ape Named 'Ape' (voice)

as Dr. Julius Plumford

as Prof. Waldman

as Man on the Beach in Barbados Who Looks Like John Cleese

as Halfdan the Black

as Bartender

as Sheriff John T. Langston

as Various Roles

as Robin Hood

as Director in Sotheby's

as Post Office Clerk

as Television public relations man