Cast
Barry Jones
Professor John Malcolm Francis Willingdon
André Morell
Superintendent G.W. Folland
Olive Sloane
Goldie Phillips
Sheila Manahan
Ann Willingdon
Hugh Cross
Stephen Lane
Joan Hickson
Mrs. Emily Georgina Peckett
Ronald Adam
Arthur Lytton, the Prime Minister
Marie Ney
Mrs. Willingdon
Joss Ackland
Station Policeman
Marianne Stone
Woman in Phone Box
John Stratton
Army Mechanic
George Spence
Man on Bus (uncredited)
Crew
Camera
Dennis Fox
Camera Operator
Gerald Moss
Camera Operator
Ray Sturgess
Camera Operator
Gilbert Taylor
Director of Photography
Robert Huke
Camera Operator
Directing
Roy Boulting
Director
John Boulting
Director
Mike Johnson
Assistant Director
Shirley Barnes
Continuity
Production
John Boulting
Producer
John Palmer
Production Manager
Roy Boulting
Producer
Peter De Sarigny
Associate Producer
Dorothy Holloway
Casting
