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