Michael Grable

John P. Jones (voice)

Unknown

Denlinger

'Pistol' Pete Whipple

The King

Brigadier Gubbins 'M'

The King

Denlinger

Ned Irish

Carl Yankowski

Nathan

Professor Ruckus Mandulbaum

Roger Towers

Myles

Jacques

Halpren Nolan

Bishop Gyles

Prince Humperdinck

Self

Professor Gelson

Self

Andy Warhol

Self

Self

Dr. Richard Sommers

Frank Harper

Gavin Hawk

Jim Huxley

Gary Jones

Mayor Larry Kline

Jake Simon

John Broman

Arthur Davenport

Professor Sinclair Wilde

David Mills

Lawrence O'Neill

Guy Fox (voice)

John

Joshua

Brooks

Joseph Stevens

Kersey

Edmond Halley / Robert Hooke (voice)

Orin / Arthur Curry / Aquaman (voice)

E. Pierce Marshall

Paul

The Meter Man

Miller

Bobby Wobbly

British Intelligence Officer

Rafferty Dickinson

Stan's Doctor

Jeff Mathews

Pilot (voice)

Fox

Dr. Stephen Metzner

Barry Fitzgerald

Dr. Lawrence Gordon

Dr. Clement

Steven Jennings

Ethan Belfrage

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

Self

Capt. Kenneth Shine

Self (archive footage)

Erik

Arnold

Unknown

Despereaux

Pierre Despereaux

Norman

Young Karol Wojtyla

Reigert

Dr. Magnuson

Dr. Lawrence Gordon

Ted Bundy

Edgar

Albert Bodine

Carter

Mac "Macbeth" Wilson

Dr. Fritz Hippler

Dr. Fritz Hippler

Thomas Ince

Self

Fritz Arno Wagner

Burke

John Houseman

Sidney Truex

Watson (voice)

Chris Martin (voice)

Charles Dickens (voice)

Edison's Assistant (voice)

Cyrano de Bergerac (voice)

Mr. Henderson (voice)

Nigel / Guard #1 (voice)

Paxton Powers (voice)

Garrett (voice)

Michael Collins

Colonel James Burton

Det. Nick Ruskin

Jerry

Lt. David Ferris

Jonas

Dr. John 'Jack' Percy Vilmorin York

Captain William Boone

Steve Horsegroovy

Brad Follmer

Robin Hood

Nick Eliot

Lord Arthur Holmwood

Dobbs

Kent Gregory

Russ Wheeler

Maj. Cabot Forbes

David Lukner

Tow Truck Driver (uncredited)

Westley

Guilford Dudley

Josef

Lionel

James Harcourt

Executive Producer

Producer

Co-Producer

Associate Producer

Screenplay

Author