Neil Hamilton

Peter Fedor / Prince Alexis

Una Merkel

Princess Katerina

Helen Ware

Queen Elinor

Albert Gran

King Nicholas

Lawrence Grant

Count Vellenburg

Thelma Todd

Lydia

Vera Lewis

Queen Elizabeth

Mischa Auer

Duke Charles

Burr McIntosh

Masoch

Wilhelm von Brincken

Capt. Boyer

Murdock MacQuarrie

Blondel

Harry Semels

Sergeant of the Guard (uncredited)

Walter Lang