Rudolf Rassendyll / King Rudolf
Princess Flavia
Colonel Sapt
Grand Duke 'Black' Michael
Rupert of Hentzau
Antoinette de Mauban
Capt. Fritz von Tarlenheim
Marshal von Strakencz
Countess Helga
Assassin
Josef
Bersonin
De Gautet
Train Passenger Eating Banana (uncredited)
Rudolf's Brother Lord Burlesdon (uncredited)
Archbishop (uncredited)
Detchard (uncredited)