On screen
Cast
17 credited performers
Lewis Stone
Rudolf Rassendyll / King Rudolf
Alice Terry
Princess Flavia
Robert Edeson
Colonel Sapt
Stuart Holmes
Grand Duke 'Black' Michael
Ramon Novarro
Rupert of Hentzau
Barbara La Marr
Antoinette de Mauban
Malcolm McGregor
Capt. Fritz von Tarlenheim
Edward Connelly
Marshal von Strakencz
Artwork unavailable
Lois Lee
Countess Helga
John George
Assassin
Snitz Edwards
Josef
Artwork unavailable
Fairfax Burger
Bersonin
Artwork unavailable
S.E. Jennings
De Gautet
Ted Billings
Train Passenger Eating Banana (uncredited)
Eric Mayne
Rudolf's Brother Lord Burlesdon (uncredited)
Lon Poff
Archbishop (uncredited)
Frederick Vogeding
Detchard (uncredited)