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