Greta Garbo
Mata Hari
Ramon Novarro
Lt. Alexis Rosanoff
Lionel Barrymore
General Serge Shubin
Lewis Stone
Andriani
C. Henry Gordon
Dubois
Karen Morley
Carlotta
Alec B. Francis
Major Caron
Blanche Friderici
Sister Angelica
Edmund Breese
Warden
Helen Jerome Eddy
Sister Genevieve
Frank Reicher
The Cook - Spy
Mischa Auer
Firing Squad Victim (uncredited)
Reginald Barlow
Prosecutor (uncredited)
Harry Cording
Ivan (uncredited)
Cecil Cunningham
Gambler Selling Ring (uncredited)
Maude Turner Gordon
Madame Durand (uncredited)
Sarah Padden
Sister Teresa (uncredited)
Michael Visaroff
Jacques (uncredited)