William Powell
Role: Baron Stephan Wolensky
Luise Rainer
Role: Countess Olga Mironova
Robert Young
Role: Grand Duke Peter
Maureen O'Sullivan
Role: Maria Orlich
Frank Morgan
Role: Colonel Baron Suroff
Henry Stephenson
Role: Prince Johann
Bernadene Hayes
Role: Mitzi Reisenbach
Donald Kirke
Role: Anton, the Thief
Douglass Dumbrille
Role: Mr. Korum, a Conspirator
Charles Waldron
Role: Dr. Malchor, a Conspirator
Ian Wolfe
Role: Leon, a Conspirator
Barnett Parker
Role: Albert, Stephan's Butler
Frank Reicher
Role: Pavloff
Bert Roach
Role: Hotel Clerk
Paul Porcasi
Role: Santuzzi
E. E. Clive
Role: Auctioneer
Emma Dunn
Role: Anna - Olga's Housekeeper
Frank Conroy
Role: Col. Radoff
George Davis
Role: Waiter (uncredited)
Carole Landis
Role: Bidder (uncredited)
Theodore von Eltz
Role: Adjutant to Prince Johann (uncredited)
Russ Powell
Role: Coachman (uncredited)
Torben Meyer
Role: Train Announcer (uncredited)
John Picorri
Role: Italian Ambassador (uncredited)
Alphonse Martell
Role: Marcel Garnier (uncredited)
Franklyn Farnum
Role: Bidder (uncredited)
Olaf Hytten
Role: Conspirator (uncredited)
Rollo Lloyd
Role: Jailer (uncredited)
Roland Varno
Role: Czar's Officer (uncredited)
Dorothea Wolbert
Role: Bidder (uncredited)
Spencer Charters
Role: Usher (uncredited)
Gino Corrado
Role: Inn Patron (uncredited)
Clarence Wilson
Role: Stationmaster (uncredited)
Philo McCullough
Role: Conspirator (uncredited)
Leonard Carey
Role: Valet to Wolensky (uncredited)
Jules Cowles
Role: Bidder (uncredited)
King Baggot
Role: Customs Official (uncredited)
Sidney Bracey
Role: Maria's Footman (uncredited)
Alexander Pollard
Role: Bidder (uncredited)
Edmund Mortimer
Role: Man at Auction (uncredited)