Cast
Georgiy Yumatov
Kasyanov
Yuri Yurovsky
Zhukovskiy
Ilya Sudakov
Mendeleev
Oleg Frelikh
Professor at the University
Mikhail Nazvanov
Ryabushinskiy
Rostislav Plyatt
Reporter
Vladimir Uralskiy
Officer
Vladimir Druzhnikov
Nesterov
Sofiya Giatsintova
Anna Nikolaevna
Galina Frolova
Zhukovskiy's sister
Andrey Puntus
Zhukovskiy's student
Vsevolod Aksyonov
Grand prince
Nikolay Yakhontov
Lieutenant (uncredited)
Aleksandr Khokhlov
Professor at the University
Vladimir Gribkov
Professor at the University
Gleb Romanov
Neklyudov
Vsevolod Sanayev
Aleksandr Mikhaylov
Vladimir Belokurov
Chaplygin
Boris Bityukov
Nezhdanovskiy
Anatoli Chemodurov
Rybakov