| Person | Type | Job | Role(s) |
|---|---|---|---|
 Barré Lyndon | Crew | Writing | Screenplay |
 Hugo Friedhofer | Crew | Sound | Original Music Composer |
J. Watson Webb Jr. | Crew | Editing | Editor |
 John Brahm | Crew | Directing | Director |
 Lucien Ballard | Crew | Camera | Director of Photography |
Marie Belloc Lowndes | Crew | Writing | Novel |
René Hubert | Crew | Costume & Make-Up | Costume Design |
Robert Bassler | Crew | Production | Producer |
 Anita Sharp-Bolster | Cast | Actress | Wiggy (uncredited) |
 Aubrey Mather | Cast | Actor | Superintendent Sutherland |
 Bess Flowers | Cast | Actress | Woman in Audience |
 C. Montague Shaw | Cast | Actor | Stage Manager (uncredited) |
 Cedric Hardwicke | Cast | Actor | Robert Bonting |
 Charlie Hall | Cast | Actor | Comedian |
 David Clyde | Cast | Actor | Det. Sgt. Bates |
 Doris Lloyd | Cast | Actress | Jennie |
 George Sanders | Cast | Actor | Inspector John Warwick |
Heather Wilde | Cast | Actress | |
 Helena Pickard | Cast | Actress | Annie Rowley |
 Laird Cregar | Cast | Actor | Mr. Slade |
 Merle Oberon | Cast | Actress | Kitty Langley |
 Olaf Hytten | Cast | Actor | Harris, the Haberdasher |
 Queenie Leonard | Cast | Actress | Daisy the Maid |
 Ruth Clifford | Cast | Actress | Hairdresser (uncredited) |
 Sara Allgood | Cast | Actress | Ellen Bonting |
 Skelton Knaggs | Cast | Actor | Man with Cart |
 Thora Hird | Cast | Actress | First Murder Victim Katie (uncredited) |
| Person | Type | Job | Role(s) |
