Жажда

Алексей Гуськов

Nikolay, Kostya's Father

Галина Бокашевская

Kostya's Mother

Анна Банщикова

Marina, Kostya's Stepmother

Олег Куликович

Eduard Mikhaylovich, Kostya's Stepfather

Светлана Смирнова-Марцинкевич

Olga

Georgiy Solovyov

Nikita, Olga's Son

Андрей Попович

Young Kostya

Игорь Лях

Headmaster Aleksandr Stepanovich

Елена Морозова

Head Teacher Elena Vasilyevna

Kseniya Galinskaya

Natasha, Kostya's Sister

Ivan Bogomazov

Romka, Kostya's Brother

Алексей Одинг

Slavik's Friend

Mikha

Boxing Coach Mikhalych

Natalya Dragileva

Nurse Tanechka

Алексей Семёнов

Hospital Doctor

Наталья Иохвидова

Nurse at the Children's Hospital