Kirill Golovko-Sersky as Gleb

Pavel Gayduchenko as Kosta Korolkov

Marina Yakovleva as Natasha Alyabina

Igor Kvasha as Arkadiy Borisovich - Doctor

Valentina Talyzina as Grandmother of Kostya Korolkov

Yevgeni Gerasimov as Gleb's father

Georgiy Shtil as Gnesik

Raisa Ryazanova as Galina Pavlovna - Mother of Kostya Korolkov

Yuriy Solomin as Mr. Gleb

Vakhtang Kikabidze as Spy

Aleksandr Delibash as

Natalya Golovko as