Kenneth More Captain Jonathan Shepard Peter Burton Captain Philip Vian - 4th Destroyer of Flotilla Dana Wynter WRNS Second Officer Anne Davis Carl Möhner Captain Lindemann - 'Bismarck' Laurence Naismith First Sea Lord Admiral Sir Dudley Pound Edward R. Murrow Himself - Edward R. Murrow Karel Štěpánek Admiral Lutjens - 'Bismarck' Maurice Denham Commander Richards Michael Goodliffe Captain Banister Jack Gwillim Captain Wilfrid Patterson - 'King George V' Michael Hordern Admiral Sir John Tovey, Commander-in-Chief - 'King George' Geoffrey Keen Assistant Chief of the Naval Staff (A.C.N.S.) Esmond Knight Captain Leach - 'Prince of Wales' Jack Watling RNVR Signals Officer Ernest Clark Captain, HMS Suffolk Victor Maddern Able Seaman Outside Admiralty (uncredited) John Horsley Captain - 'Sheffield' Walter Hudd Admiral Holland - 'Hood' Sydney Tafler Henry - First Workman, 'Prince of Wales' Seán Barrett Able Seaman Brown John Stuart Captain Kerr - 'Hood' John Stride Tom Shepard, Captain Shepard's son, TAG - Ark Royal's Swordfish Squadron (uncredited) Peter Dyneley Commander Jenkins (uncredited) David Hemmings Seaman - 'Ark Royal' (uncredited) Johnny Briggs Seaman - 'Prince of Wales' (uncredited) Norman Shelley Voice of Winston Churchill (uncredited) John Barron Officer P.R.O (uncredited) Harold Goodwin Airman on Phone (uncredited) Ian Hendry Meteorological Officer on 'King George V' (uncredited) Walter Gotell Signals Officer Mueller on the 'Bismarck' (uncredited) Samuel John Kydd Civilian Worker - 'Prince of Wales' (uncredited) Glyn Houston Able Seaman - 'Prince of Wales' (uncredited) Cameron Hall Civilian Worker - 'Prince of Wales' (uncredited) Michael Ripper Able Seaman - Lookout on 'Suffolk' (uncredited) Michael Balfour Able Seaman - Lookout on 'Suffolk' (uncredited) Graham Stark Petty Officer Williams (uncredited) Olaf Pooley Officer of the Watch - 'Sheffield' (uncredited) George Pravda Damage Control Officer - Bismarck (uncredited) Russell Napier Air Vice Marshal (uncredited) Edward Judd Navigating Officer - 'Prince of Wales' (uncredited) Bernard Lee Firing Officer (uncredited) Robert Brown Gunnery Officer - 'King George V' (uncredited) Mark Burns Naval Rating on Phone (uncredited) Roy Castle Able Seaman - 'Prince of Wales' (uncredited) Victor Beaumont Officer - 'Bismarck' (uncredited) Patrick Jordan SOE Agent in Norway (uncredited) Ronald Leigh-Hunt Somers - Officer 'King George V' (uncredited) Mike Sarne Hoffman - 'Bismarck' (uncredited)