Matt Kirk
Aldo Ray
Ann Fulton
Heather Sears
Sergeant Drake (as Derek Barnes)
Deryck Barnes
Under Secretary
Richard Vernon
Naval Captain (as Ewan Macduff)
Ewan MacDuff
Brigadier
Martin Boddey
Motorcycle Policeman
Max Robertson
Small Boy
John Pusey
Constable
Fred Abbott
Attorney General
Peter Bathurst
Johnny Kirk
Neil McCallum
Bert
Victor Maddern
Luke (as Carlo Justini)
Carlo Giustini
Superintendent Hanna
Alan Tilvern
Mrs. Fulton
Barbara Mullen
Pat Fulton
Gerry Duggan
Police Commissioner (as Kenneth Warren)
Kenneth J. Warren
Constable Macey
Grant Taylor
Story
Lee Robinson
Additional Dialogue
Alexander Baron
Producer
Michael Balcon
Director
Harry Watt
Original Music Composer
Kenneth V. Jones
Director of Photography
Gordon Dines
Screenplay
Jon Cleary
Adaptation
Inman Hunter