Top Billed Cast

• 

  Борис Ливанов

  Dick Arrowsmith
• 

  N. Golitsyna

  Ethel
• 

  Максим Штраух

  Samuel Wolfe
• 

  Boris Svetlov

  Layons
• 

  Sergey Tikhonravov

  Garreth
• 

  Виктор Станицын

  Bill Steer
• 

  Андрей Абрикосов

  Engineer Nikitin
• 

  Sergei Tsenin

  Sazonov
• 

  Aleksey Dolinin

  Gaydar
• 

  Дмитрий Кара-Дмитриев

  Bistayev
• 

  Vera Maretskaya

  Comrade Olga
• 

  Vladimir Uralskiy

  Gostev
• 

  Leonid Kulakov

  Rakitin
• 

  Oswald Glazunov

  Rector (uncredited)
• 

  Ivan Lavrov

  Professor (uncredited)
• 

  Lyudmila Glazova

  Felice (uncredited)
• 

  Marta Aleschenko

  John's wife
• 

  Timofey Remizov

  Laboratory worker (uncredited)
• 

  eva milyutina

  Arrowsmith's guest
• 

  Ivan Chuvelyov

  Arrowsmith's guest
• 

  Leonid Obolensky

  The reporter (uncredited)
• 

  Weyland Rodd

  The worker (uncredited)
• 

  Эдуард Гунн

  The provocator (uncredited)