cast
- Alec Guinness
- William Horatio Ambrose
- Irene Browne
- Mrs. Barrington
- Percy Herbert
- Tommy
- Harold Goodwin
- Duckworth
- Maurice Denham
- The Mayor
- Victor Maddern
- Dredge Owner
- George Rose
- Bullen
- Jackie Collins
- June
- Junia Crawford
- Evie
- Lloyd Lamble
- Superintendent Browning
- Charles Cullum
- Major Kent
- Joan Hickson
- Mrs. Kent
- Warren Mitchell
- Artie White
- Miles Malleson
- Erudite Angler
- Sam Kydd
- Frogman
- Frederick Piper
- Harry
- Harry Locke
- Peters
- Richard Wattis
- Registrar of Shipping
- Eric Pohlmann
- Liberamanian Consul
- Newton Blick
- Bank Manager
- Donald Pleasence
- Teller
- Lionel Jeffries
- Garrod
- Donald Churchill
- Roy
- Allan Cuthbertson
- Chailey
crew
- Charles Frend
- Director
- Michael Balcon
- Producer
- T.E.B. Clarke
- Screenwriter
- Douglas Slocombe
- Cinematographer
- John Addison
- Composer (Music Score)
- Jack Harris
- Editor
