Konstantin Zakharov
- Vaska
- (as Kostya Zakharov)
Aleksandr Gurov
- Petka
- (as Sasha Gurov)
Sergei Pavlikhin
- Seryozhka
- (as Seryozha Pavlikhin)
Irina Gomozova
- Verka
- (as Ira Gomozova)
Yelena Tolgskaya
- Mashka
- (as Lena Tolgskaya)
Andrei Pronin
- Pashka
- (as Andryusha Pronin)
Nikolai Smirnov
- Ivan Nefedych
- (as N. Smirnov)
Vladimir Frolov
- Yegor Mikhaylov
- (as V. Frolov)
Vyacheslav Podvig
- Yefim Igoshkin
- (as V. Podvig)
Lyudmila Gnilova
- Lenka
- (as L. Grilova)
Mariya Kremneva
- maty Vaski
- (as M. Kremnyova)
Nikolay Romanov
- Serafim
- (as N. Romanov)
Viktor Markin
- Leonid - geolog
- (as V. Markin)
Vladimir Prokofyev
- Gennadiy - geolog
- (as V. Prokofyev)
Konstantin Maksimov
- Danilov
- (as K. Maksimov)
Anatoliy Kubatskiy
- Petunin
- (as A. Kubatskiy)
Vadim Zakharchenko
- Yermolay
- (as V. Zakharchenko)