Inspector Thornton
John Stuart
Susan
Victoria Hopper
Pendicot
John Le Mesurier
Roger Trent
Frank Hawkins
Jenkins
Tony Doonan
Sandy
Gillie Fenwick
Mrs. Midge
Blanche Fothergill
Roberts, Plainclothesman
Pat Ryan
A. Sawford-Dye
Elizabeth Howarth
Director
John Gilling
Writer
Executive Producer
Maurice J. Wilson
Director of Photography
Cyril Bristow
Editor
Maurice Rootes
Assistant Director
George Brass
Continuity
Barbara Cole
Sound
Charles Reynolds
Producer
Harry Reynolds
Makeup Artist
Marjorie Green
Wardrobe Master
Bert Rooke
Production Manager
George Armstrong