Bill Randall
George Baker
George Hoskins
Richard Attenborough
Sailor (uncredited)
Alfie Bass
Garage Worker (uncredited)
Stratford Johns
Birdie
Bill Owen
Helen Randall
Virginia McKenna
Maj. Fordyce
Roland Culver
Customs Officer Brewster
Bernard Lee
Sir Richard
Ralph Truman
Raines
John Chandos
Customs Officer
Harold Goodwin
Detective
John Longden
Director
Basil Dearden
Producer
Screenplay
Michael Relph
Novel
Nicholas Monsarrat
John Whiting
Editor
Peter Bezencenet
Cinematography
Gordon Dines
Music
William Alwyn