A biographical film about the life and work of the outstanding physicist-electrical engineer, inventor of radio communications Alexander Semenovich Popov.
| Actor | Role |
|---|---|
 Nikolai CherkasovAleksandr Popov | Aleksandr Popov |
 Aleksandr BorisovNot listed | Not listed |
 Konstantin SkorobogatovNot listed | Not listed |
 Yuriy TolubeevNot listed | Not listed |
 Vladimir ChestnokovNot listed | Not listed |
 Bruno FrejndlikhNot listed | Not listed |
 Osip AbdulovАйзекс | Айзекс |
 Aleksandr LarikovNot listed | Not listed |
 Vladimir TaskinDurnovo | Durnovo |
 Ilya SudakovMendeleyev | Mendeleyev |