| Person | Type | Job | Role(s) |
|---|---|---|---|
 Anthony Gilbert | Crew | Writing | Novel |
Burnett Guffey | Crew | Camera | Director of Photography |
Daniele Amfitheatrof | Crew | Crew | Additional Music |
Edwin Wetzel | Crew | Sound | Scoring Mixer |
Ernst Toch | Crew | Crew | Additional Music |
 Friedrich Hollaender | Crew | Crew | Additional Music |
 George Duning | Crew | Crew | Additional Music |
Gert Andersen | Crew | Camera | Second Assistant Camera |
Glenn Rominger | Crew | Sound | Sound Re-Recording Mixer |
Henry Batista | Crew | Editing | Editor |
 Jean Louis | Crew | Costume & Make-Up | Costume Design |
Jerome Pycha Jr. | Crew | Art | Art Direction |
 John Leipold | Crew | Crew | Additional Music |
 Joseph H. Lewis | Crew | Directing | Director |
Lambert E. Day | Crew | Sound | Sound |
Lawrence W. Butler | Crew | Crew | Special Effects |
Mario Castelnuovo-Tedesco | Crew | Crew | Additional Music |
Milton Feldman | Crew | Directing | Assistant Director |
Mischa Bakaleinikoff | Crew | Sound | Music, Music Director |
Muriel Roy Bolton | Crew | Writing | Screenplay |
Ned Scott | Crew | Camera | Still Photographer |
 Wallace MacDonald | Crew | Production | Producer |
Donald C. Glouner | Crew | Visual Effects | Matte Painter |
Milton Stumph | Crew | Art | Set Decoration |
Vera Mikol | Crew | Production | Researcher |
 Anita Sharp-Bolster | Cast | Actress | Sparkes |
 Charles McNaughton | Cast | Actor | Gatekeeper (uncredited) |
 Doris Lloyd | Cast | Actress | Mrs. Mackie |
Evan Thomas | Cast | Actor | Dr. Keller (uncredited) |
 George Macready | Cast | Actor | Ralph Hughes |
Harry Hays Morgan | Cast | Robinson (uncredited) | |
 Joy Harington | Cast | Bertha (uncredited) | |
 Leonard Mudie | Cast | Actor | Peters (uncredited) |
 Leyland Hodgson | Cast | Actor | Policeman (uncredited) |
Marilyn Johnson | Cast | Actress | Nurse (uncredited) |
 May Whitty | Cast | Actress | Mrs. Hughes |
 Nina Foch | Cast | Actress | Julia Ross |
 Olaf Hytten | Cast | Actor | The Reverend Lewis (uncredited) |
 Ottola Nesmith | Cast | Actress | Mrs. Robinson (uncredited) |
 Queenie Leonard | Cast | Actress | Alice (uncredited) |
 Reginald Sheffield | Cast | Actor | McQuarrie (uncredited) |
 Roland Varno | Cast | Actor | Dennis Bruce |
Milton Owen | Cast | Actor | Policeman (uncredited) |
| Person | Type | Job | Role(s) |
