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Олег Жаков as Dr. Aleksei Rozhdestvensky |
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Михаил Кузнецов as Dr. Aleksandr Kolesov |
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Николай Черкасов as Lukich |
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Виктор Хохряков as Dr. Vladimir Petrov |
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Людмила Шабалина as Vera |
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Клавдия Лепанова as Lena |
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Борис Кудрявцев as |
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Владимир Дорофеев as |
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Михаил Ростовцев as Scientist at the banquet |
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Александр Арди as "Arbenin" |
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Владимир Таскин as Journalist |
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Лев Кровицкий as Scientist |
| Directing | Александр Зархи | Director |
| Directing | Иосиф Хейфиц | Director |
| Writing | Александр Зархи | Writer |
| Writing | Иосиф Хейфиц | Writer |
| Writing | Сергей Ермолинский | Writer |
| Writing | Евгений Габрилович | Writer |
| Camera | Вячеслав Гарданов | Director of Photography |
| Editing | Елена Баженова | Editor |
| Editing | Евгения Маханькова | Editor |
| Sound | Венедикт Пушков | Original Music Composer |
| Production | Михаил Шостак | Executive Producer |
| Art | Николай Суворов | Production Design |
