Aleksandr Mitta
Director

Yuriy Nikulin
Alexey's father Zhanna Prokhorenko
Alexey's mother Vladimir Zamanskiy
Zhenya's father Natalya Seleznyova
Doctor Sergei Danchenko
Alexey Jiltsov Mikhail Kozlovsky
Vladimir, Alexey's friend Olga Ryzhnikova
Zhenya Karetnikova Yevgeni Perov
Physics Teacher Yevgeni Gerasimov
Zhanna Prokhorenko
Vladimir Zamanskiy
Aleksandr Lukyanov

Mikhail Lvovsky
Writer Nadezhda Veselovskaya
Editor Gennadiy Gladkov
Original Music Composer Aleksandr Mitta
Co-Writer Roman Veseler
Director of Photography Yuli Kim
Lyricist A. Yerukhimovich
Sound Director Konstantin Krimets
Conductor Minna Blank
Music Editor Lyudmila Tsitsina
Script Editor V. Malev
Camera Operator Vladimir Lvov
Assistant Camera