character - Давыдов, подполковник

character - Colonel Golubev

character - Нариманов

character - Николай Николаевич Чебышев

character - Leonid Krasin

character - Масин, следователь

character - Andrey Andreyevich

character - constructor

character - military surgeon

character - Chernetsov (uncredited)

character - Grigori Pavlovich