David MacDonald
Director
Roger MacDougall
Screenplay
K.C. Alexander
Producer
Francis Chagrin
Music
Ernest Palmer
Director of Photography
Douglas Myers
Editor
James A. Carter
Art Direction
Louis London
Production Manager
George Pollock
Assistant Director
Leo Wilkins
Sound Recordist
Cecil Cooney
Camera Operator
Alastair Sim
Samuel Blight
Barry K. Barnes
Larry Preston
Diana Churchill
Janet Preston
Edward Chapman
Detective Inspector Bray
Ruby Miller
Mrs. Honeycombe
Austin Trevor
Heinreks
Leo Genn
Another Agent
Geoffrey Sumner
Detective Delacroix
Glen Alyn
Agent Posing as Reporter
Torin Thatcher
Karl Bergsen
Carl Jaffe
Foreign Agent
Cathleen Nesbitt
Miss. Sampson
Cyril Smith
Barber
James Harcourt
Judge
