Dmitri Dorlyak

Grisha Fokin

Ольга Жизнева

Masha Stepanova

Yuri Yuryev

Professor Yuliyan Stepanov

Максим Штраух

Fyodor Tsitronov

Валентина Серова

Liza

Григорий Сочевко

Kolya

Irina Volodko

Olga

Александр Чистяков

Olga's Father

Dmytro Holubynskyi

Surgeon Ivan Germanovich

Екатерина Мельникова

Grisha's Mother

Yekaterina Gureykina

Katya, Grisha's Neighbour

Іван Кононенко-Козельський

Olga's Husband

Ivan Koval-Samborskyi

Sailor

Dmitri Konsovsky

Grisha Fokin (uncredited)

Пётр Репнин

Kolya's Uncle (uncredited)