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