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Михаил Жаров as Fritz |
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Максим Штраух as Professor |
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Lidiya Atmanaki as Fritz's mother |
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Михаил Астангов as Hitler |
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Янина Жеймо as Gertruda |
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Михаил Высоцкий as Fritz's father |
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Всеволод Пудовкин as German officer |
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Константин Сорокин as Franz, Fritz's comrade |
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Людмила Шабалина as Soviet zoo guide |
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Татьяна Говоркова as Fritz's aunt (uncredited) |
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Лидия Королёва as Fritz's bride (uncredited) |
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Валентина Телегина as (uncredited) |
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Николай Мичурин as Birthday party guest (uncredited) |
| Directing | Григорий Козинцев | Director |
| Directing | Леонид Трауберг | Director |
| Writing | Samouil Marchak | Screenplay |
| Writing | Samouil Marchak | Short Story |
| Sound | Лев Шварц | Original Music Composer |
| Camera | Андрей Москвин | Director of Photography |
| Sound | Илья Волк | Sound Director |
| Production | Михаил Шостак | Executive Producer |
