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Виктор Добровольский as Makar Nechay |
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Валентина Ивашёва as Galya |
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Антон Дунайский as Panas Timofeyich |
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Василий Зайчиков as Aleksey Adamov |
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Fyodor Dubrovskiy as Academician Stepan Olenin |
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Nina Alisova as Natalya Stakhova, Adamov's aspirant |
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Алексей Максимов as Ilya Vladimirov, graduate student |
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Георгий Куровский as Professor Ivan Gorskiy |
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Ivan Sadovskyi as Professor Ivan Golovin |
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Гарэн Жуковская as American lady (uncredited) |
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Владимир Лисовский as Trofim (uncredited) |
| Writing | Boris Starshov | Writer |
| Directing | Владимир Шмидтгоф-Лебедев | Director |
| Camera | Алексей Мишурин | Director of Photography |
| Art | Николай Тряскин | Production Design |
| Art | Yuriy Rogochiy | Production Design |
| Sound | Юлий Мейтус | Original Music Composer |
| Writing | Andrii Malyshko | Lyricist |
| Sound | N. Mina | Sound Director |
| Sound | O. Kotova | Sound Director |
| Production | N. Chovgun | Executive Producer |
| Editing | L. Ivanova | Editor |
| Directing | I. Estrin | First Assistant Director |
| Directing | Владимир Войшвилло | First Assistant Director |
| Directing | Andrey Bocharov | Second Assistant Director |
