Cast
Dagmara Deringer
Lidochka
Anatoli Goryunov
Doctor (uncredited)
Boris Runge
Lyova Prokushev
Vera Altayskaya
Marusya Ivanova, pioneer leader
Pyotr Savin
Vladimir Vishnyakov, teacher
Yekaterina Derevshchikova
Katya
Anatoliy Ignatyev
Seryozha
Lev Potyomkin
Arkadiy's father
Andrei Tutyshkin
School headmaster
Elena Maksimova
Vitya Surikov's mother
Aleksandr Sashin-Nikolsky
Friend of Surikov's mother
Nina Rusinova
Arkadiy's mother