- Conrad Veidt
- Captain Ernst Hardt
- Sebastian Shaw
- Ashington
- Valerie Hobson
- The School Mistress
- Marius Goring
- Lieutenant Felix Schuster
- June Duprez
- Anne Burnett
- Athole Stewart
- The Rev. Hector Matthews
- Agnes Lauchlan
- Mrs. Matthews
- Helen Haye
- Mrs. Sedley
- Cyril Raymond
- The Rev. John Harris
- George Summers
- Captain Ratter
- Hay Petrie
- Engineer
- Grant Sutherland
- Bob Bratt
- Robert Rendel
- Admiral
- Mary Morris
- Chauffeuse
- Margaret Moffat
- Kate
- Kenneth Warrington
- Commander Denis
- Torin Thatcher
- Submarine Officer
- Esma Cannon
- Maggie
- Cyril Chamberlain
- Minor Role
- Bryan Herbert
- Corporal Guarding POW's on Ferry
- Skelton Knaggs
- German Sailor Looking for Capt. Hardt
- Jack Lambert
- Passport Official
- Jeanne Macintyre
- German Girl
- Howard Marion-Crawford
- German Officer in Kieler Hof Hotel
- Bernard Miles
- Hans - Hotel Receptionist
- John Penrose
- Newlywed at Kiel Hotel
- Johnnie Schofield
- Armed Guard of POW's on Ferry
- Jack Sharp
- Sailor
- Diana Sinclair-Hall
- Undetermined Minor Role
- Graham Stark
- Bell Boy
