Trailer
 | Aleksandr Grave as Владимир Афанасьевич Обручев |
 | Gennadi Karnovich-Valua as Владимир Леонтьевич Комаров |
 | Rodion Aleksandrov as Иван Павлович Бардин |
 | Sergey Safonov as Aлександр Eвгеньевич Ферсман |
 | Sofiya Pilyavskaya as Ева Самойловна |
 | Yuri Platonov as Виктор Николаевич Соколов |
 | Emmanuil Vitorgan as военпред Камышев |
 | Vladimir Shcheglov as Василий Яковлевич Лонин |
 | Tatyana Augskap as Лена Лонина |
 | Georgiy Kulikov as Лев Львович Колданов |
 | Valeriy Barinov as Иван Саввич Шаповалов |
 | Alla Balter as Нина Спиридоновна |
 | Nadezhda Butyrtseva as Нина Ивановна Иванкова |
 | Nina Beloborodova as женщина с подарком - валенками |
 | Galina Lyapina as Антонина Ивановна |
 | Valentin Pechnikov |
| Svetlana Sadkovskaya as девушка |
 | Alexander Petrov as Сергей Федорович Петров |
| Writing | |
| Iosif Prut | Writer |
| Elena Chernyak | Writer |
Directing | |
| Vasili Davidchuk | Director |
Camera | |
| Yuri Isakov | Director of Photography |
Sound | |
| Irakli Gabeli | Music |
