O Inimigo X

Elenco principal

• 
  Clark GableMcKinley B. 'Mac' Thompson
• 
  Hedy LamarrGolubka / Theodore Yahupitz / Lizvanetchka 'Lizzie'
• 
  Oskar HomolkaCommissar Vasiliev
• 
  Felix BressartIgor Yahupitz / Vanya
• 
  Eve ArdenJane Wilson
• 
  Sig RumanEmil Von Hofer
• 
  Natasha LytessOlga Milanova
• 
  Vladimir SokoloffMichael Bastakoff