Marlene Dietrich

Princess Sophia Frederica / Catherine II

John Lodge

Count Alexei

Sam Jaffe

Grand Duke Peter

Louise Dresser

Empress Elizabeth Petrovna

C. Aubrey Smith

Prince August

Gavin Gordon

Capt. Gregori Orloff

Olive Tell

Princess Johanna Elizabeth

Ruthelma Stevens

Countess Elizabeth 'Lizzie'

Davison Clark

Archimandrite Simeon Todorsky / Arch-Episcope

Erville Alderson

Chancelor Alexei Bestuchef

Maria Riva

Sophia as a Child

Jane Darwell

Miss Cardell, Sophia's Nurse (uncredited)

Edward Van Sloan

Herr Wagner (uncredited)

Akim Tamiroff

Bit Part (uncredited)

Marie Wells