as Kosov
as student at a meeting (uncredited)
as Иван Кравчук
as Zernov
as Gleb Petrovich
as Seryozha Davydov
as Golyba
as Dyomin
as Stepan Yakovlevich Shokhin (direktor shkoly)
as Белов
as Sergei
as Nikolai Schelokov
as Vedmed
as Lyosha Starostin
as физик Евгений Александрович Крымов
as Vasya Gordiyenko
as 'Chap'
as Nikolai
as Narrator
as офицер 8-го мехкорпуса
as Виталий Николаевич Свиридов, следователь НКВД
