| Person | Type | Job | Role(s) |
|---|---|---|---|
 Adrian | Crew | Costume & Make-Up | Costume Design |
 Baroness Emmuska Orczy | Crew | Writing | Novel |
 Cedric Gibbons | Crew | Art | Art Direction |
 Conrad A. Nervig | Crew | Editing | Editor |
 Franz Waxman | Crew | Sound | Original Music Composer |
 George Fitzmaurice | Crew | Directing | Director |
Harold Goldman | Crew | Writing | Writer |
 Harold Rosson | Crew | Camera | Director of Photography |
 Herman J. Mankiewicz | Crew | Writing | Dialogue |
John W. Considine Jr. | Crew | Production | Producer |
Alexander Pollard | Cast | Bidder (uncredited) | |
 Alphonse Martell | Cast | Actor | Marcel Garnier (uncredited) |
 Barnett Parker | Cast | Actor | Albert, Stephan's Butler |
 Bernadene Hayes | Cast | Actress | Mitzi Reisenbach |
 Bert Roach | Cast | Actor | Hotel Clerk |
 Carole Landis | Cast | Actress | Bidder (uncredited) |
 Charles Waldron | Cast | Actor | Dr. Malchor, a Conspirator |
 Clarence Wilson | Cast | Actor | Stationmaster (uncredited) |
 Donald Kirke | Cast | Actor | Anton, the Thief |
 Dorothea Wolbert | Cast | Actress | Bidder (uncredited) |
 Douglass Dumbrille | Cast | Actor | Mr. Korum, a Conspirator |
 E. E. Clive | Cast | Actor | Auctioneer |
 Edmund Mortimer | Cast | Actor | Man at Auction (uncredited) |
 Emma Dunn | Cast | Actress | Anna - Olga's Housekeeper |
 Frank Conroy | Cast | Actor | Col. Radoff |
 Frank Morgan | Cast | Actor | Colonel Baron Suroff |
 Frank Reicher | Cast | Actor | Pavloff |
 Franklyn Farnum | Cast | Actor | Bidder (uncredited) |
 George Davis | Cast | Actor | Waiter (uncredited) |
 Gino Corrado | Cast | Actor | Inn Patron (uncredited) |
 Henry Stephenson | Cast | Actor | Prince Johann |
 Ian Wolfe | Cast | Actor | Leon, a Conspirator |
John Picorri | Cast | Actor | Italian Ambassador (uncredited) |
 Jules Cowles | Cast | Actor | Bidder (uncredited) |
 King Baggot | Cast | Actor | Customs Official (uncredited) |
 Leonard Carey | Cast | Actor | Valet to Wolensky (uncredited) |
 Luise Rainer | Cast | Actress | Countess Olga Mironova |
 Maureen O'Sullivan | Cast | Actress | Maria Orlich |
 Olaf Hytten | Cast | Actor | Conspirator (uncredited) |
 Paul Porcasi | Cast | Actor | Santuzzi |
 Philo McCullough | Cast | Actor | Conspirator (uncredited) |
 Robert Young | Cast | Actor | Grand Duke Peter |
 Roland Varno | Cast | Actor | Czar's Officer (uncredited) |
 Rollo Lloyd | Cast | Actor | Jailer (uncredited) |
Russ Powell | Cast | Actor | Coachman (uncredited) |
 Sidney Bracey | Cast | Actor | Maria's Footman (uncredited) |
 Spencer Charters | Cast | Actor | Usher (uncredited) |
 Theodore von Eltz | Cast | Actor | Adjutant to Prince Johann (uncredited) |
 Torben Meyer | Cast | Actor | Train Announcer (uncredited) |
 William Powell | Cast | Actor | Baron Stephan Wolensky |
| Person | Type | Job | Role(s) |
