Юрий Никулин
Alexey's father
Жанна Прохоренко
Alexey's mother
Владимир Заманский
Zhenya's father
Наталья Селезнёва
Doctor
Sergei Danchenko
Alexey Jiltsov
Mikhail Kozlovsky
Vladimir, Alexey's friend
Olga Ryzhnikova
Zhenya Karetnikova
Yevgeni Perov
Physics Teacher
