Cast 21
Laurence Payne
Norman Martell
Patricia Dainton
Helen Martell
Jane Griffiths
Peggy Hill
Edward Underdown
Dr. Peter Murdoch
John Arnatt
Supt. Ross
Humphrey Lestocq
Simmons, the Producer
Lucy Griffiths
Miss Potter
Olive Milbourne
Mrs. Booth
Arthur Hewlett
Marshall
Annette Kerr
Cinema cashier
Cleo Laine
Cleo
Dudley Moore
Rehearsal Pianist (Uncredited)
Sylvia Davis
Cinema sales girl (uncredited)
Max Faulkner
Det. Sgt. Fred Smith (uncredited)
Garard Green
Patrol car policeman (uncredited)
Arthur Howell
P.C. Williams (uncredited)
Richard Neller
Sleeping Man in Theater (uncredited)
Pat Ryan
Detective Examining Tape-Recorder (uncredited)
Stuart Saunders
Cinema manager (uncredited)
Arthur Skinner
Det. Sgt. Carter (uncredited)
John Tatham
Detective / Fingerprints Officer (uncredited)
Crew 19
Evelyn Gibbs
Wardrobe Master
Jane Baker
Theatre Play
Montgomery Tully
Director
Philip Baker
Theatre Play
Jim Connock
Editor
Montgomery Tully
Screenplay
Maurice J. Wilson
Screenplay
John Shinerock
Camera Operator
William Hutchinson
Art Direction
Pat Marsden
Production Manager
Hilda Fox
Hairdresser
Maurice J. Wilson
Producer
Philip Martell
Music Director
Estelle Stewart
Continuity
Don Banks
Original Music Composer
Walter J. Harvey
Director of Photography
Richard Mills
Makeup Artist
David Tringham
First Assistant Director
Dick Smith
Sound Recordist