Director: Владимир Касьянов
Николай Симонов
Ivanov, factory worker and inventor
Пётр Кузнецов
Dukalskiy, engineer from Moscow
Наталья Разумова
Nastya, Ivanov's fiancée
Сергей Троицкий
Kraft, technical office representative
Petr Shidlovsky
Babkin, jewelry shop owner
Александр Ржешевский
Important man
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