| Person | Type | Job | Role(s) |
|---|---|---|---|
 Bronislau Kaper | Crew | Sound | Original Music Composer |
 Edwin H. Knopf | Crew | Production | Producer |
 George Boemler | Crew | Editing | Editor |
Guy Trosper | Crew | Writing | Screenplay |
Howard Emmett Rogers | Crew | Writing | Story |
 Jack Conway | Crew | Directing | Director |
John H. Kafka | Crew | Writing | Story |
 Joseph Ruttenberg | Crew | Camera | Director of Photography |
 Anna Q. Nilsson | Cast | Actress | Madame Deval (uncredited) |
 Basil Rathbone | Cast | Actor | Henri Sarrou |
 Claire Trevor | Cast | Actress | Michelle Allaine |
 Enrique Acosta | Cast | Actor | Associate Judge (uncredited) |
 Eric Mayne | Cast | Actor | Courtroom Spectator (uncredited) |
 Felix Bressart | Cast | Actor | Dr. Andre Tessier |
 Francis X. Bushman Jr. | Cast | Actor | Giant Policeman (uncredited) |
 Frank Conroy | Cast | Actor | Defense Attorney (uncredited) |
 Fritz Leiber | Cast | Actor | Foreign Minister Deval (uncredited) |
 Gibson Gowland | Cast | Actor | Reporter (uncredited) |
 H.B. Warner | Cast | Actor | Prosecuting Attorney |
 Hedy Lamarr | Cast | Actress | Lucienne Talbot |
 John St. Polis | Cast | Actor | Professor (uncredited) |
 Margaret Wycherly | Cast | Actress | Madame Pelletier |
 Philip Merivale | Cast | Actor | Commissaire |
 Sig Ruman | Cast | Actor | Dr. Alex Dubroc |
 Torben Meyer | Cast | Actor | Old Man (uncredited) |
 Vladimir Sokoloff | Cast | Actor | Carlos Le Duc (uncredited) |
 William Powell | Cast | Actor | David Talbot aka Jean Pelletier |
| Person | Type | Job | Role(s) |
