as Prof. Ian Holbourn
as Captain Turner
as Lt. Capt. Schwieger
as Captain Hobbs
as Staff Captain Anderson
as Vogele
as Avis Dolphin
as Alice
as Winston Churchill
as Alfred Vanderbilt
as Dorothy Taylor
as Capt. Windridge
as Johnston
as Lord Mersey
as Carson
as Tom
as German Admiralty
as Peggy
as Officer Pryce