Vladimir Solovyov

Mikhail Ivanovich Kalinin

Grigori Belov

Ivan Vladimirovich Michurin

Nikolai Shamin

Terentiy

Fyodor Grigoryev

Kartashov

Mikhail Zharov

Khrenov

Konstantin Nassonov

father Khristofor

Aleksei Zhiltsov

Bykov

Ivan Nazarov

postman

Viktor Khokhryakov

Ryabov

Dmitriy Dubov

Sinitsyn

Gennadi Pechnikov

Lesnitskiy

Vyacheslav Isayev

Mayer

Sergei Tsenin

Wallace Beard

Yuri Lyubimov

translator

Ivan Kashirin

peasant

Sergey Bondarchuk

selectionist (uncredited)

Aleksandr Smirnov

selectionist (uncredited)

Viktor Klyucharyov

professor Kigunov (uncredited)

Pavel Gaideburov

Pashkevich (uncredited)

Yevgeniya Khovanskaya

Pashkevch's wife (uncredited)

Aleksey Konsovskiy

Pashkevich's guest (uncredited)

Klara Luchko

Pashkevich's guest (uncredited)

Anatoliy Larionov

Michurin in his youth (uncredited)

Natalya Sadovskaya

Michurina in her youth (uncredited)

Yevgeny Gurov

Bykov's guest (uncredited)

Pyotr Savin

member of the revkom (uncredited)

Nikolai Khryashchikov

member of the revkom (uncredited)

Anatoliy Zhukov

Shurusha (uncredited)

Sergei Antimonov

official (uncredited)

Mikhail Grodskiy

professor (uncredited)

Viktor Matisen

professor (uncredited)

Aleksandr Pelevin

first scientist (uncredited)

Nikolai Neronov

second scientist (uncredited)

Leonid Knyazev

worker (uncredited)

Pavel Vinnik

Kartashov's student (uncredited)

Svetlana Bogolyubova

Natasha (uncredited)

Anatoliy Solovyov

student (uncredited)

Aleksey Bakhar

division commander (uncredited)

Nikolay Lebedev

professor (uncredited)

Andrei Petrov

Meshkov (uncredited)

Vsevolod Semyonov

secretary (uncredited)

Valerian Kazanskiy

guest (uncredited)

Natalia Sadovskaya

Alexandra Michurina in young age (uncredited)

Oleksandra Vasylieva

Aleksandra Vasilyevna Michurina