Cast
Laurence Payne
Norman Martell
Jane Griffiths
Peggy Hill
Humphrey Lestocq
Simmons, the Producer
Annette Kerr
Cinema cashier
Cleo Laine
Cleo
Pat Ryan
Detective Examining Tape-Recorder (uncredited)
Patricia Dainton
Helen Martell
Arthur Hewlett
Marshall
Dudley Moore
Rehearsal Pianist (Uncredited)
Max Faulkner
Det. Sgt. Fred Smith (uncredited)
Edward Underdown
Dr. Peter Murdoch
Lucy Griffiths
Miss Potter
John Arnatt
Supt. Ross
Stuart Saunders
Cinema manager (uncredited)