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)