Актёрский состав 15

1. Dmitri Dorlyak

   Grisha Fokin

2. 

   Olga Zhiznyeva

   Masha Stepanova

3. Yuri Yuryev

   Professor Yuliyan Stepanov

4. 

   Maksim Shtraukh

   Fyodor Tsitronov

5. 

   Валентина Серова

   Liza

6. Григорий Сочевко

   Kolya

7. Irina Volodko

   Olga

8. 

   Aleksandr Chistyakov

   Olga's Father

9. Dmytro Holubynskyi

   Surgeon Ivan Germanovich

10. Ekaterina Melnikova

    Grisha's Mother

11. Yekaterina Gureykina

    Katya, Grisha's Neighbour

12. 

    Ivan Kononenko-Kozelskyi

    Olga's Husband

13. 

    Ivan Koval-Samborskyi

    Sailor

14. Dmitri Konsovsky

    Grisha Fokin (uncredited)

15. 

    Петр Репнин

    Kolya's Uncle (uncredited)

Съёмочный состав 8