Harry Baur

as Peter Brioukow

Penelope Dudley-Ward

as Natasha

Laurence Olivier

as Captain Ivan Ignatoff

Athene Seyler

as Madame Anna Sabine

Lilian Braithwaite

as Countess

Morton Selten

as General Kovrin

Sam Livesey

as Fedor

Robert Cochran

as Polonsky

Hay Petrie

as Spy

Walter Hudd

as The Doctor

Kate Cutler

as Madame Kovrin

C.M. Hallard

as President of Court Martial

Charles Carson

as Officer of Defense

Edmund Willard

as Officer of Prosecution

Morland Graham

as Brioukow's Servant