| Soldier Iosuf Akchurin (as I. Kuznetsov) | Ivan Kuznetsov | |
| Soldier Aleksei Timoshkin (as A. Dolinin) | Andrei Dolinin | |
| Commander Ivan Zhuravliev | Ivan Novoseltsev | |
| Marya Nikolayevna Zhuravlieva | Yelena Kuzmina | |
| Outlaw Colonel Skuratov | Andrei Fajt | |
| Aleksandr Petrovich Postnikov geologist | Aleksandr Chistyakov | |
| Soldier Petrov (as P. Yudin) | Pavel Yudin | |
| Soldier Petr Sviridenko (as P. Masokha) | Pyotr Masokha | |
| Soldier Balandin (as V. Kulakov) | Viktor Kulakov | |
| Soldier Zhurba (as S. Krylov) | Stepan Krylov | |
| Soldier Dmitri Levkoyev (as D. Zolts) | David Zolts | |
| Soldier Muradov (as A. Repinov) | Aleksandr Kepinov | |
| Soldier Ata-Kuliev (as A. Kulyev) | Aga-Rza Kuliyev | |
