Cast & Crew
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Kay FrancisElena Moura - Leslie HowardStephen "Steve" Locke
- William GarganBob Medill
- Philip ReedGaston LeFarge
- Irving PichelSergei Pavlov
- Walter ByronUnder Secretary Stanley
- Cesar RomeroTito Del Val
- J. Carrol NaishCommissioner of War Trotsky
- Ivan F. Simpson'Poohbah' Evans
- Gregory GayeMr. Kolinoff
- Halliwell HobbesSir Walter Carrister
- Arthur AylesworthMr. Henry Farmer
- Mary ForbesLady Catherine Trehearne
- Doris LloydLady Carrister
- Alphonse EthierPaul DeVigney
- Paul PorcasiCount Romano
- Addison RichardsColonel Zubinoff (uncredited)
- Frank ReicherMr. X
- Tenen HoltzLenin
- Marina KoshetzMaria Nikolaievna
- George C. PearceLloyd George
- Michael CurtizDirector