- Joel McCrea
- Taine
- Laurence Naismith
- Blossom
- Denis Lehrer
- Reimann
- Marius Goring
- Hiart
- Karel Stepanek
- Diss
- Powys Thomas
- Ambulance Driver
- Evelyn Keyes
- Cecily
- Robert Dickens
- Tommy
- Megs Jenkins
- Mrs. Powell
- Ellis Irving
- Wharton
- Patricia Laffan
- Magda
- Frank Lawton
- Hassingham
- Cyril Raymond
- Cartwright
- Herbert Lom
- Sandorski
- Roland Culver
- Randall
- David Hurst
- Lex
- Clement McCallin
- Inspector Sullivan
- Jack McNaughton
- Inspector Matthews
- Arnold Bell
- Sgt. Baines
- Joan Hickson
- Woman Station Announcer
- Charles Hammond
- Railway Ticket Clerk
- George Hilsdon
- Police Constable
- Ian Selby
- Lex's Contact
