Flash Gordon (voice)
The Colonel James
Richard Graves
The Hangman
Laura's Father
Flasher
George Kailo
Finch (voice)
Sergeant Mack
Car Salesman / Man at Bus Stop / Negro Gentleman / Big Fag / Police Officer / Tank (voice)
Herman the Horrible (voice)
George Johnson
Pirate/Pieman/Sneeze
Walter Kenton
Keno Bar Manager
(voice)
Jack-in-the-Box (voice)
Boogwart (voice)
Boris (uncredited)
Mort Weiner
Mayor Egan
Jack Horner
Simon
Beast / Prince (voice)
Jack Pumpkinhead / Tyrone the Terrible Toy Tinkerer (voice)
Peculiar Purple Pieman of Porcupine Peak (voice)
Wally "Mr. Love" Williams
Craig Davis
(uncredited)
Bob Burley
Baron Munchausen / Snake / Cowboy / Prosecuting Attorney
Mr. Nobody / Guard
Fergueson
Dan McVeay
Hollywood Showcase Announcer
Little Bob (uncredited)
Additional Voices (voice)
Frankie Romano
Tarzan (voice)
Mr. Kelp
Big Jack
Pitfall Harry (voice)
Cliff Hamilton
Madman (voice)
Dr. Chunks (voice)
Director (voice)
Mike Summit (voice)
Groundchuck (voice)
Narrator (voice)
Chuck Fleck
Ripcord McQuack (voice)
Big Strong Man
Thundarr (voice)
Sheriff Potgut (voice)
Carter Brooks