Jimmy Hanley
Curly Minter
Valentine Dyall
Dr. Fell
Christine Silver
Mrs. Musgrave
Charles Hawtrey
Mike Atkinson
Laurence Naismith
Editor
Leslie Daniels
JJ
Merle Tottenham
Alice
Constance Smith
Molly Nusgrave
Aubrey Dexter
Harding
Reginald Dyson
Sergeant Cranbourne
John Clifford
Atkinson
Stuart Saunders
Porter
Cyril Conway
Dr. Mansfield
Charles Houston
Tom
Harriet Petworth
Matron
Charles Mander
P.C. Smith
H. Hamilton Earle
Orderly
F.A. Williams
Butler
Archie Callum
Night Watchman
Cedric Williams
Director of Photography
Frank Spencer
Original Music Composer
Godfrey Grayson
Director
John Gilling
Screenplay
Godfrey Grayson
Screenplay
Anthony Hinds
Producer
James Needs
Editor
Denis Wreford
Art Direction
Myra Cullimore
Costume Design
Philip Leakey
Makeup Artist
Monica Hustler
Hairstylist
Jimmy Sangster
Assistant Director
Frank Spencer
Conductor
Margery Allingham
Radio Play
Arthur Barnes
Production Manager
Renée Glynne
Continuity
Edgar Vetter
Sound Recordist
Prudence Sykes
Casting
Alfred Cox
Negative Cutter
Peter Bryan
Camera Operator