Ivan Triesault

as The King

as Plantinov

as Professor Voltan

as West German Delegate (uncredited)

as Benson Parkhurst

as General von Katz

as Laszlo Shatzi

as Lt. Brandt

as Von Kleist

as Mitter

as Head Captain (uncredited)

as Wexler

as Doctor

as Professor Levenson

as Demaratus

as Grandpa Loues / Mr. Trisapopolis

as Lewis Venable (uncredited)

as Dr. Peter Ulof

as Prof. Göteborg

as Thad Borchik

as Jacob Brenner

as Inspector

as Bernard - Maitre d' (uncredited)

as Prof. Julius Angermann

as German Colonel (uncredited)

as Gen. Dimitri Langrad

as Fred Schoenbeck

as Dr. Franz Kleinman

as Duke Alexander Michael David of Austria

as Military Officer

as Carl Kersch

as Ludwig (uncredited)

as Erik Haldeman

as Dr. Manus

as Baron Von Hollden

as Phillip - Captain of Waiters (uncredited)

as Danish Envoy

as The President

as Walter

as Von Ellstein

as Henri Dupre

as German Major

as Dr. Colman

as King George

as Alexis Delios

as German Lieutenant (uncredited)

as The Russian

as Assassin

as Photographer (uncredited)

as I.V. Morse

as Pelham Vetch

as Jewel Theif

as Rocheau

as Naftalie Vrandstadter (uncredited)

as Major Reimann

as Peter Vandaman

as Major Chavet

as Alfredi

as Eric Mathis

as Sgt. Johann Grillparzer

as Hausmer, Schiller's Henchman

as Monsieur Chopin (uncredited)

as Dr. Igor Baumler (Uncredited)

as Jan Spavero (uncredited)

as Museum Guide (uncredited)

as German Lieutenant (uncredited)

as Colonel Pavlec

as Pastor Niemöller

as Mr. Tukhachevsky (Former General) (uncredited)