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