Commandant Fraser
Lieutenant Alec Duffy
Lieutenant Tom Corbett
Admiral Ryder
Smart
German Officer
Abercrombie
Ramsey
Captain of the Tirpitz
Cox
McCleery
CPO Chubb
George
Winley
Diver Navigator, X2
Hutchins
Engineer, X2
Lt. Anderson
No. 1, X2
Officer Interpreter
Officer on Towing Sub. (1)
Officer on Towing Sub. (2)
German Officer on Tirpitz
RAF Officer (uncredited)
German Navy Officer (uncredited)
Sailor on Towing Sub (uncredited)
Naval Officer in Briefing Room (uncredited)