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Александр Борисов as Ivan Petrovich Pavlov |
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Nina Alissowa as Varvara Antonovna Ivanova |
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Владимир Честноков as Lev Zakarich Zabelin |
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Fjodor Nikitin as Gleb Mikhailovich Zvantsev |
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Владимир Балашов as Semenov |
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Николай Плотников as Nikodin Vasilyevich |
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Иван Дмитриев as Dmitri Pavlov |
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Григорий Шпигель as Professor Petrushev |
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Василий Софронов as Arkip Semyonovich Telegin |
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Grigori Belinnkevich as Sergei Mironovich Kirov |
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Николай Черкасов as Maxim Gorky |
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Roman Rubinstain as |
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Константин Адашевский as Stepan Lukich |
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Николай Харитонов as student |
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Владимир Крюгер as John Hicks (uncredited) |
| Writing | Михаил Папава | Screenplay |
| Camera | Вячеслав Гарданов | Director of Photography |
| Camera | Евгений Кирпичев | Director of Photography |
| Directing | Григорий Рошаль | Director |
| Sound | Дмитрий Кабалевский | Original Music Composer |
| Camera | Моисей Магид | Director of Photography |
| Camera | Лев Сокольский | Director of Photography |
| Directing | Геннадий Казанский | Assistant Director |
| Art | Евгений Еней | Production Design |
| Art | Абрам Векслер | Production Design |
| Sound | Арнольд Шаргородский | Sound Director |
| Costume & Make-Up | Тамара Левицкая | Costume Design |
| Costume & Make-Up | Василий Ульянов | Makeup & Hair |
| Editing | Валентина Миронова | Editor |
| Visual Effects | Георгий Шуркин | VFX Director of Photography |
| Visual Effects | А. Алексеев | VFX Supervisor |
| Visual Effects | A. Petrova | VFX Artist |
| Directing | Эмиль Галь | Assistant Director |
| Directing | Ye. Vishneskaya | First Assistant Director |
| Directing | Ekaterina Serdechkova | Second Assistant Director |
| Directing | А. Соколов | Third Assistant Director |
| Sound | L. Yukhnin | Conductor |
| Production | Исаак Гольдин | Executive Producer |
