Борис Бабочкин
— Rodionov the son, an engineer
Тамара Макарова
— Kovaleva
Nikolai P. Cherkasov
— Rodionov (father)
Александр Хвыля
— Pronin, an engineer
Vasilii Zaichikov
— Party Committee Secretary
Petr Aleinikov
— Grisha, a driver
Boris Blimov
— Bondarets, a sailor
Pyotr Kirillov
— Krasnosheev
Nikolai Dubinskii
— Vlasov
N. Mitrushenko
— Serezhka