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Дмитрий Харатьян as Igor Grushko |
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Евгения Ханаева as Mariya Vasilyevna Devyatova |
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Natalia Fateeva as Kaleriya Georgiyevna |
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Наталья Вавилова as Taya Petrova |
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Андрей Гусев as Oleg Komarovsky |
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Евдокия Германова as Dasha Rozanova |
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Зиновий Гердт as Karl Sigizmundovich |
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Павел Винник as Semyon Semyonovich |
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Муза Крепкогорская as Rufina Andreyevna |
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Олег Табаков as Komarovsky's father |
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Владимир Меньшов as Vladimir Valentinovich (swimming coach) (uncredited) |
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Гарри Бардин as French language teacher |
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Николай Константинов as Shurik Korbut |
| Writing | Семён Лунгин | Writer |
| Directing | Владимир Меньшов | Director |
| Art | Борис Бланк | Production Design |
| Camera | Михаил Биц | Director of Photography |
| Sound | Александр Флярковский | Original Music Composer |
| Editing | Елена Михайлова | Editor |
| Writing | Алексей Дидуров | Lyricist |
| Sound | Георгий Гаранян | Conductor |
| Sound | Валерий Попов | Sound Director |
| Sound | Valentina Alexeyeva | Sound Director |
| Camera | Владимир Полянский | Camera Operator |
| Costume & Make-Up | Нина Антонова | Makeup & Hair |
| Costume & Make-Up | N. Ilyina | Makeup & Hair |
| Costume & Make-Up | Ирина Белякова | Costume Design |
| Directing | Владимир Кучинский | First Assistant Director |
| Directing | S. Rykalova | Second Assistant Director |
| Camera | V. Novikov | Assistant Camera |
| Writing | Наталия Лозинская | Script Editor |
| Sound | Минна Бланк | Music Editor |
| Production | Валентин Маслов | Executive Producer |
| Directing | Владимир Селезнёв | Co-Director |
