A. Genin
Nahum Beychik, inventor
Vasili Bokarev
Surkov, master
Kuzma Yastrebetsky
Lopatin
Aleksandr Duletov
Kuzma, Surkov's son
Nikolai Akimov
Factory secretary
Ye. Bondina
Lopatina
T. Sokolovskaya
Nadya
F. Tarasov
Worker
S. Stepanov
V. Snezhinskaya
(uncredited)
Viktor Arkasov
Worker (uncredited)
Ivan Mutanov
