Robert Mitchum

Character: Capt. Murrell

Curd Jürgens

Character: Kapitän von Stolberg

David Hedison

Character: Lt. Ware

Theodore Bikel

Character: Heinie Schwaffer

Russell Collins

Character: Doctor

Kurt Kreuger

Character: Von Holem (uncredited)

Frank Albertson

Character: Lt. J.G. Crain

Biff Elliot

Character: Quartermaster

Michael McHale

Character: German Soldier

Alan Dexter

Character: Lt. Mackeson

Joe Di Reda

Character: BMSN Robbins

Robert Boon

Character: Chief Engineer

Doug McClure

Character: Ens. Merry (uncredited)

Joe Brooks

Character: German Soldier

George Ford

Character: Officer (uncredited)

Sasha Harden

Character: German Sailor

Ralph Manza

Character: Lt. Bonelli (uncredited)

Gordon Mitchell

Character: German Sailor

Marco López

Character: Soldier (uncredited)

Vince Deadrick Sr.

Character: American Sailor (uncredited)

Marco Lopez

Character: Soldier (uncredited)

Hans Moebus

Character: Sailor (uncredited)

Ralph Reed

Character: Fireman (uncredited)