| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alexandre Dumas | Crew | Writing | Novel |
 Arthur Roberts | Crew | Editing | Editor |
Charles Althouse | Crew | Sound | Sound |
Don L. Cash | Crew | Costume & Make-Up | Makeup Department Head |
Edward G. Boyle | Crew | Art | Set Decoration |
Edward Small | Crew | Production | Executive Producer |
Edward Ward | Crew | Sound | Original Music Composer |
George Bruce | Crew | Writing | Screenplay |
George Robinson | Crew | Camera | Director of Photography |
Grant Whytock | Crew | Production | Producer's Assistant |
Howard A. Anderson | Crew | Crew | Special Effects |
Jerry Jerome | Crew | Crew | Stunts |
 Lambert Hillyer | Crew | Directing | Second Unit Director |
Richard V. Heermance | Crew | Sound | Sound Editor |
 Rowland V. Lee | Crew | Directing | Director, Producer |
 Val Paul | Crew | Production | Production Manager |
 Chuck Hamilton | Crew | Crew | Stunts |
John DuCasse Schulze | Crew | Art | Production Design |
Joseph Boyle | Crew | Directing | Assistant Director |
Edward P. Lambert | Crew | Costume & Make-Up | Costume Design |
 Alberto Morin | Cast | Actor | Friend of Von Neuhoff (Uncredited) |
 Charles Trowbridge | Cast | Actor | Priest |
 Charles Waldron | Cast | Actor | Kurt Mirbach |
 Clayton Moore | Cast | Actor | Lt. Fritz Dorner |
 Dick Curtis | Cast | Actor | Guard (Uncredited) |
 Donald Curtis | Cast | Actor | Guard (Uncredited) |
 Dwight Frye | Cast | Actor | Pavlov's Secretary (Uncredited) |
 Edmund Mortimer | Cast | Actor | Officer (Uncredited) |
 Edward Keane | Cast | Actor | Turnkey |
 Eric Mayne | Cast | Actor | Wedding Guest (Uncredited) |
 Ernie Adams | Cast | Actor | Informer |
 Florence Bates | Cast | Actress | Countess Mathilde Von Braun |
 Franklyn Farnum | Cast | Actor | Friend of Von Neuhoff (Uncredited) |
 George Sanders | Cast | Actor | Gurko Lanen |
 Georges Renavent | Cast | Actor | Marquis de Chatante |
 Henry Brandon | Cast | Actor | Lt. Schultz |
 Ian Wolfe | Cast | Actor | Conrad Stadt |
 Jack Mulhall | Cast | Actor | Schmidt |
 James Seay | Cast | Actor | Lt. Stone |
 Joan Bennett | Cast | Actress | Grand Duchess Zona of Lichtenburg |
 Lawrence Grant | Cast | Actor | The Baron (Uncredited) |
 Leyland Hodgson | Cast | Actor | Wedding Guard (Uncredited) |
 Lionel Belmore | Cast | Actor | Hercules Snyder |
 Lionel Royce | Cast | Actor | Col. Zimmerman |
 Louis Hayward | Cast | Actor | Edmund Dantes Jr. |
 Margaret Fealy | Cast | Actress | Mrs. Snyder |
 Maurice Cass | Cast | Actor | Max, Tailor |
 Michael Mark | Cast | Actor | Archbishop |
 Michael Visaroff | Cast | Actor | Prince Paul Pavlov |
 Montagu Love | Cast | Actor | Prime Minister Baron Von Neuhoff |
 Ralph Byrd | Cast | Actor | William Gluck |
 Rand Brooks | Cast | Actor | Hans Mirbach |
 Robert Milasch | Cast | Actor | Citizen (Uncredited) |
 Stanley Andrews | Cast | Actor | Turnkey |
 Stanley Blystone | Cast | Actor | Max (Uncredited) |
 Ted Billings | Cast | Actor | Townsman in Mirbach's Shop (Uncredited) |
Ted Oliver | Cast | Actor | Turnkey |
 Theodore von Eltz | Cast | Actor | Captain |
 Wyndham Standing | Cast | Actor | Chamberlain |
Chuck Hamilton | Cast | Actor | Guard (Uncredited) |
| Person | Type | Job | Role(s) |
