Nigel Patrick
Superintendent Robert Hazard
Acting
Michael Craig
Inspector Phil Learoyd
Acting
Yvonne Mitchell
Mildred
Acting
Paul Massie
David Harris
Acting
Bernard Miles
Ted Harris
Acting
Olga Lindo
Mrs. Harris
Acting
Earl Cameron
Dr. Robbins
Acting
Gordon Heath
Paul Slade
Acting
Barbara Steele
Student
Acting
Peter Vaughan
Detective Whitehead (uncredited)
Acting
Yvonne Buckingham
Sapphire Robbins
Acting
Jocelyn Britton
Patsy
Acting
Robert Adams
Horace Big Cigar
Acting
Desmond Llewelyn
Police Constable
Acting
Fenella Fielding
Lingerie Shop Manageress
Acting
Susan Stranks
Student
Acting
Freda Bamford
Sgt. Cook
Acting
Rupert Davies
Ferris
Acting
Orlando Martins
Barman
Acting
Harry Baird
Johnnie Fiddle
Acting
Grace Arnold
Sapphire's Landlady
Acting
Thomas Baptiste
Man on the Street
Acting
Victor Brooks
Police Sgt.
Acting
Basil Dignam
Doctor Burgess
Acting
Dorothy Gordon
Lily
Acting
Nora Gordon
Newsagent's Wife
Acting
Lucy Griffiths
Johnnie Fiddle's Landlady
Acting
Vanda Hudson
Girl at Tulip Club
Acting
Dan Jackson
Nightclub Owner
Acting
Philip Lowrie
Student
Acting
Bartlett Mullins
Newsagent
Acting
Philip Ray
Mr. Young
Acting
Lloyd Reckord
Pianist in International Club
Acting
John Richardson
Student
Acting
Richard Vernon
Doctor at Crime Scene
Acting
Christopher Witty
Boy
Acting
Dolores Mantez
Student (International Club)
Acting
Anthony Singleton
Bit Part
Acting
Geremy Phillips
Youth
Acting
Joan Hooley
Woman in Street
Acting
Boscoe Holder
Dancer in Nightclub
Crew
George Curtis
Police Constable
Acting