Cast
Ivan Pereverzev as Vasiliy Dokuchaev
Nadezhda Cherednichenko as Anna Egorovna, Dokuchaev's wife
Yuri Puzyryov as Nikolay Sibirtsev
Yevgeni Lebedev as Yegor
Viktor Chekmaryov as Aleksey Yermolov
Serhii Dvoretskyi as Adamov
Vladislav Strzhelchik as Vitaliy Andreyevich, minister's secretary
Vladimir Volchik as Scientist
Rimma Manukovskaya
Konstantin Adashevsky as (uncredited)
Vladimir Arsentyev as (uncredited)
Aleksandr Afanasev as Gendarme (uncredited)
Lev Stepanov as (uncredited)