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