Nikolai Okhlopkov
Foreman Zakharov
Viktor Stanitsyn
Engineer Cline, American
Alexander Geirot
Engineer Petrov
Sofya Yakovleva
Translator
Vasiliy Kovrigin
Chief of the constitution site
S
Sergey Polyakov
Vasyutka, stoker
Fyodor Kurikhin
Machinist
Pavel Olenev
Perepyolkin
Nikolai Plotnikov
Chairman of the committee (uncredited)
Elena Maksimova
Worker woman (uncredited)
Tatyana Okunevskaya
Marusya (uncredited)