Kurt Kreuger

as Koenig

as James Clark

as Polya

as Heindorf

as Capt. Neubauer

as Major Werner

as Von Holem (uncredited)

as Hans Breel

as Karl Kadar

as Max Anders

as Erich Baumann

as Captain Heimer

as Tony Windborn

as Anthony Jardine

as Walt Wilson

as Ernest

as Capt. Kurt von Weber

as U-Boat Sailor (archive footage) (uncredited)

as Lt. Von Kleist

as Otto Kauders

as Lt. von Eyrick

as Lt. Gersdorf

as Capt. von Schletow

as Ernst Muller

as Chauffeur

as German U-Boat Sailor on Microphone (uncredited)

as German Co-Pilot (uncredited)

as Orderly (uncredited)

as Lieutenant

as German Attaché (uncredited)

as German Sentry (Uncredited)

as Franz, German Seaman