Zhukovskiy
Yuri Yurovsky
Mendeleev
Ilya Sudakov
Rybakov
Anatoli Chemodurov
Ryabushinskiy
Mikhail Nazvanov
Kasyanov
Georgiy Yumatov
Zhukovskiy's student
Andrey Puntus
Grand prince
Vsevolod Aksyonov
Reporter
Rostislav Plyatt
Neklyudov
Gleb Romanov
Vsevolod Sanayev
Vladimir Uralskiy
Aleksandr Mikhaylov
Chaplygin
Vladimir Belokurov
Nesterov
Vladimir Druzhnikov
Anna Nikolaevna
Sofiya Giatsintova
Zhukovskiy's sister
Galina Frolova
Professor at the University
Oleg Frelikh
Aleksandr Khokhlov
Vladimir Gribkov
Nezhdanovskiy
Boris Bityukov
Director
Vsevolod Pudovkin
Original Music Composer
Vissarion Shebalin
Director of Photography
Anatoli Golovnya
Dmitriy Vasilev
Screenplay
Anatoli Granberg