Stephen Locke
Elena Moura
Bob Medill
Gaston LeFarge
Sergei Pavlov
Poohbah Evans (as Ivan Simpson)
Sir Walter Carrister
Commissioner of War Trotsky (as J. Carroll Naish)
Stanley
Tito Del Val
Henry Farmer
Paul DeVigney
Mr. X
Lenin
Lady Carrister
Lady Catherine Trehearne
Maria Nikolaievna (as Marina Schubert)
Lloyd George (as George Pearce)
Mr. Kolinoff
Count Romano
Marshall O'Reilly (scenes deleted)
Suspect (scenes deleted)
Under Secretary Armitage (uncredited)
Madame DeVigney (uncredited)
Ball Guest at British Embassy (uncredited)
Cabinet Member (uncredited)
First Cabinet Member (uncredited)
Russian Policeman (uncredited)
Mrs. Farmer (uncredited)
Man Saying Lenin Regained Consciousness (uncredited)
Soviet Committeeman (uncredited)
Under Secretary Avery (uncredited)
Dr. S. Prohoroff (uncredited)
Countess Romano (uncredited)
Stalin (uncredited)
Woman Saying 'Lenin will Live' (uncredited)
Waiter in British Embassy Party (uncredited)
Secretary Henderson (uncredited)
Col. Zwaboda (uncredited)
Cossack Beating Woman (uncredited)
Russian Diplomat at British Embassy Party (uncredited)
Englishman Talking to Carrister at Party (uncredited)
Radek (uncredited)
Dora Kaplan (uncredited)
Ball Guest at British Embassy Party (uncredited)
Suspect (uncredited)