Superintendent Robert Hazard
Inspector Phil Learoyd
Mildred
David Harris
Ted Harris
Mrs. Harris
Dr. Robbins
Paul Slade
Student
Detective Whitehead (uncredited)
Sapphire Robbins
Patsy
Horace Big Cigar
Police Constable
Lingerie Shop Manageress
Student
Sgt. Cook
Ferris
Barman
Johnnie Fiddle
Sapphire's Landlady
Man on the Street
Police Sgt.
Doctor Burgess
Lily
Newsagent's Wife
Johnnie Fiddle's Landlady
Girl at Tulip Club
Nightclub Owner
Student
Newsagent
Mr. Young
Pianist in International Club
Student
Doctor at Crime Scene
Boy
Student (International Club)
Bit Part
Youth
Woman in Street
Dancer in Nightclub
Police Constable