Character Name : Norman Martell

Original Name : Laurence Payne

Gender : Male

Character Name : Helen Martell

Original Name : Patricia Dainton

Gender : Female

Character Name : Peggy Hill

Original Name : Jane Griffiths

Gender : Female

Character Name : Dr. Peter Murdoch

Original Name : Edward Underdown

Gender : Male

Character Name : Supt. Ross

Original Name : John Arnatt

Gender : Male

Character Name : Simmons, the Producer

Original Name : Humphrey Lestocq

Gender : Male

Character Name : Miss Potter

Original Name : Lucy Griffiths

Gender : Female

Character Name : Mrs. Booth

Original Name : Olive Milbourne

Gender : Female

Character Name : Marshall

Original Name : Arthur Hewlett

Gender : Male

Character Name : Cinema cashier

Original Name : Annette Kerr

Gender : Female

Character Name : Cleo

Original Name : Cleo Laine

Gender : Female

Character Name : Rehearsal Pianist (Uncredited)

Original Name : Dudley Moore

Gender : Male

Character Name : Cinema sales girl (uncredited)

Original Name : Sylvia Davis

Gender : Male

Character Name : Det. Sgt. Fred Smith (uncredited)

Original Name : Max Faulkner

Gender : Male

Character Name : Patrol car policeman (uncredited)

Original Name : Garard Green

Gender : Male

Character Name : P.C. Williams (uncredited)

Original Name : Arthur Howell

Gender : Male

Character Name : Sheila (Party Guest) (uncredited)

Original Name : Aileen Lewis

Gender : Female

Character Name : Sleeping Man in Theater (uncredited)

Original Name : Richard Neller

Gender : Male

Character Name : Detective Examining Tape-Recorder (uncredited)

Original Name : Pat Ryan

Gender : Male

Character Name : Cinema manager (uncredited)

Original Name : Stuart Saunders

Gender : Male

Character Name : Det. Sgt. Carter (uncredited)

Original Name : Arthur Skinner

Gender : Male

Character Name : Detective / Fingerprints Officer (uncredited)

Original Name : John Tatham

Gender : Male