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