"The crew of the American destroyer escort, the USS Haynes, detects a German U-Boat—resulting in a prolonged, deadly battle of wits."
Robert Mitchum
as Capt. Murrell
Curd Jürgens
as Kapitän von Stolberg
David Hedison
as Lt. Ware
Theodore Bikel
as Heinie Schwaffer
Russell Collins
as Doctor
Kurt Kreuger
as Von Holem (uncredited)
Frank Albertson
as Lt. J.G. Crain
Biff Elliot
as Quartermaster
Michael McHale
as German Soldier
Alan Dexter
as Lt. Mackeson
Joe Di Reda
as BMSN Robbins
Robert Boon
as Chief Engineer
Doug McClure
as Ens. Merry (uncredited)
Joe Brooks
George Ford
as Officer (uncredited)
Sasha Harden
as German Sailor
Ralph Manza
as Lt. Bonelli (uncredited)
Gordon Mitchell
Marco López
as Soldier (uncredited)
Vince Deadrick Sr.
as American Sailor (uncredited)
Marco Lopez
Hans Moebus
as Sailor (uncredited)
Ralph Reed
as Fireman (uncredited)
Dick Powell
Director
Producer
D.A. Rayner
Novel
Wendell Mayes
Screenplay
Albert Hogsett
Art Direction
Lyle R. Wheeler
Walter M. Scott
Set Decoration
Arthur Lueker
Assistant Director
Harold Rosson
Director of Photography
Charles LeMaire
Costume Design
Ben Nye
Makeup Artist
Leigh Harline
Original Music Composer
Stuart Gilmore
Editor
Fay Babcock
Walter Rossi
Sound Effects