Vladimir Solovyov

Mikhail Ivanovich Kalinin

Григорий Белов

Ivan Vladimirovich Michurin

Nikolai Shamin

Terentiy

Fyodor Grigoryev

Kartashov

Михаил Жаров

Khrenov

Konstantin Nassonov

father Khristofor

Aleksei Zhiltsov

Bykov

Ivan Nazarov

postman

Виктор Хохряков

Ryabov

Dmitriy Dubov

Sinitsyn

Геннадий Печников

Lesnitskiy

Vyacheslav Isayev

Mayer

Сергей Ценин

Wallace Beard

Yuri Lyubimov

translator

Ivan Kashirin

peasant

Sergueï Bondartchouk

selectionist (uncredited)

Александр Смирнов

selectionist (uncredited)

Виктор Ключарёв

professor Kigunov (uncredited)

Pavel Gaideburov

Pashkevich (uncredited)

Yevgeniya Khovanskaya

Pashkevch's wife (uncredited)

Alexeï Konsovski

Pashkevich's guest (uncredited)

Клара Лучко

Pashkevich's guest (uncredited)

Anatoliy Larionov

Michurin in his youth (uncredited)

Natalya Sadovskaya

Michurina in her youth (uncredited)

Евгений Гуров

Bykov's guest (uncredited)

Пётр Савин

member of the revkom (uncredited)

Николай Хрящиков

member of the revkom (uncredited)

Анатолий Жуков

Shurusha (uncredited)

Sergei Antimonov

official (uncredited)

Mikhail Grodskiy

professor (uncredited)

Viktor Matisen

professor (uncredited)

Александр Пелевин

first scientist (uncredited)

Николай Неронов

second scientist (uncredited)

Леонид Князев

worker (uncredited)

Павел Винник

Kartashov's student (uncredited)

Svetlana Bogolyubova

Natasha (uncredited)

Анатолий Соловьёв

student (uncredited)

Алексей Бахарь

division commander (uncredited)

Nikolay Lebedev

professor (uncredited)

Андрей Петров

Meshkov (uncredited)

Vsevolod Semyonov

secretary (uncredited)

Valerian Kazanskiy

guest (uncredited)

Natalia Sadovskaya

Alexandra Michurina in young age (uncredited)

Oleksandra Vasylieva

Aleksandra Vasilyevna Michurina