Slim Callaghan
Derrick De Marney
Cynthia Meraulton
Harriette Johns
Sergeant Fields
Frank Sieman
P.C. Masters
John Ainsworth
Secretary of William Meraulton
Brenda Gay
William Meraulton
Peter Neil
Manservant
John Miller
Bellamy Meraulton
Roger Williams
Jenny Appleby
Belinda Lee
Nightclub Manager
Robert Moore
Compere (as Alex De Gallier)
Alex Gallier
Jeremy Meraulton
John Longden
Mayolo
Adrienne Corri
Paul Meraulton
Frank Henderson
Man (uncredited)
Doug Robinson
August Meraulton
Robert Adair
Effie Perkins
Delphi Lawrence
Coffee Stallkeeper
Michael Balfour
Darky
Larry Burns
Jengel
Michael Partridge
Tweest
Howard Douglas
Inspector Gringall
Trevor Reid
Producer
Assistant Director
Gerry O'Hara
Director
Charles Saunders
Novel
Peter Cheyney
Theatre Play
Gerald Verner
Screenplay
Brock Williams
Technical Advisor
Frank Drury
Music
Eric Spear
Sound
W. H. Lindop
Continuity
Joanna Busby
Makeup Artist
Michael Morris
Hairdresser
Marjorie Whittle
Third Assistant Director
John Comfort
Vorke Scarlett
Production Supervisor
Fred A. Swan
Wardrobe Assistant
June Kirby
Executive Producer
W.A. Smith
Lighting Camera
Harry Waxman
Editor
Jack Slade
Camera Operator
Robert Walker
Guido Coen
Art Direction
John Elphick
Conductor
Sound Re-Recording Assistant
Peter T. Davies
Fred Ryan