Cast
- William Powell as Baron Stephan Wolensky
- Luise Rainer as Countess Olga Mironova
- Robert Young as Grand Duke Peter
- Maureen O'Sullivan as Maria Orlich
- Frank Morgan as Col. Baron Suroff
- Henry Stephenson as Prince Johann
- Bernadene Hayes as Mitzi Reisenbach
- Donald Kirke as Anton - the Thief
- Douglass Dumbrille as Mr. Korum - a Conspirator
- Charles Waldron as Dr. Malchor - a Conspirator
Crew
- George Fitzmaurice · Director
- Baroness Emmuska Orczy · Writer
- Harold Goldman · Writer
- Monckton Hoffe · Writer
- John W. Considine Jr. · Producer
- Franz Waxman · Composer
- Harold Rosson · Cinematographer
- Conrad A. Nervig · Editor