Viktor Dobrovolsky
Makar Nechay
Valentyna Ivashova
Galya
Anton Dunaiskyi
Panas Timofeyich
Vasiliy Zaychikov
Aleksey Adamov
Fyodor Dubrovskiy
Academician Stepan Olenin
Nina Alisova
Natalya Stakhova, Adamov's aspirant
Aleksey Maksimov
Ilya Vladimirov, graduate student
Georgiy Kurovskiy
Professor Ivan Gorskiy
Ivan Sadovskyi
Professor Ivan Golovin
Garen Zhukovskaya
American lady (uncredited)
Volodymyr Lisovskyi
Trofim (uncredited)
