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