Cast
Theodore Bikel
German Officer
Cyril Chamberlain
CPO Chubb
Thomas Heathcote
Hutchins
John Horsley
Lt. Anderson
Walter Gotell
German Officer on Tirpitz
Michael Medwin
Smart
Lee Patterson
Cox
Harry Towb
McCleery
William Franklyn
No. 1, X2
Guido Lorraine
Officer Interpreter
Raymond Francis
Officer on Towing Sub. (1)
O.E. Hasse
Captain of the Tirpitz
Tony Wager
George
Anthony Newley
Engineer, X2
Barry Keegan
Sailor on Towing Sub (uncredited)
Frank Lawton
Naval Officer in Briefing Room (uncredited)
John Gregson
Lieutenant Alec Duffy
Donald Sinden
Lieutenant Tom Corbett
James Kenney
Abercrombie
William Russell
Ramsey
Lyndon Brook
Diver Navigator, X2
John Mills
Commandant Fraser
James Robertson Justice
Admiral Ryder