Cary Elwes

as Michael Grable

as The King

as Brigadier Gubbins - 'M'

as Denlinger

as Ned Irish

as Carl Yankowski

as Nathan

as Professor Ruckus Mandulbaum

as Roger Towers

as Myles

as Jacques

as Halpren Nolan

as Bishop Gyles

as Self

as Professor Gelson

as Alex Pankhurst

as Andy Warhol

as Self

as Dr. Richard Sommers

as Frank Harper

as Jim Huxley

as Gary Jones

as Jake Simon

as David Mills

as John Broman

as Principal Donato

as Lawrence O'Neill

as John

as Joshua

as Brooks

as Joseph Stevens

as Kersey

as Aquaman (voice)

as E. Pierce Marshall

as Paul

as The Meter Man

as Miller

as Jeff Mathews

as Pilot (voice)

as Dr. Stephen Metzner

as Barry Fitzgerald

as Dr. Lawrence Gordon

as Dr. Clement

as Steven Jennings

as Ethan Belfrage

as Portly Gentleman / Dick Wilkins / Fiddler / Business Man (voice)

as Capt. Kenneth Shine

as Self (archive footage)

as Arnold

as Norman

as Reigert

as Dr. Magnuson

as Dr. Lawrence Gordon

as Edgar

as Carter

as Mac "Macbeth" Wilson

as Dr. Fritz Hippler

as Thomas Ince

as Fritz Arno Wagner

as John Houseman

as Garrett (voice)

as Colonel James Burton

as Det. Nick Ruskin

as Jerry

as Lt. David Ferris

as Jonas

as Captain William Boone

as Steve Horsegroovy

as Robin Hood

as Nick Eliot

as Lord Arthur Holmwood

as Dobbs

as Kent Gregory

as Russ Wheeler

as Maj. Cabot Forbes

as Tow Truck Driver (uncredited)

as Westley

as Guilford Dudley

as Josef

as Lionel

as James Harcourt