Владимир Соловьёв

Mikhail Ivanovich Kalinin

Григорий Белов

Ivan Vladimirovich Michurin

Николай Шамин

Terentiy

Фёдор Григорьев

Kartashov

Михаил Жаров

Khrenov

Konstantin Nassonov

father Khristofor

Алексей Жильцов

Bykov

Иван Назаров

postman

Виктор Хохряков

Ryabov

Дмитрий Дубов

Sinitsyn

Геннадий Печников

Lesnitskiy

Вячеслав Исаев

Mayer

Сергей Ценин

Wallace Beard

Юрий Любимов

translator

Иван Каширин

peasant

Sergueï Bondartchouk

selectionist (uncredited)

Александр Смирнов

selectionist (uncredited)

Виктор Ключарёв

professor Kigunov (uncredited)

Павел Гайдебуров

Pashkevich (uncredited)

Евгения Хованская

Pashkevch's wife (uncredited)

Alexeï Konsovski

Pashkevich's guest (uncredited)

Клара Лучко

Pashkevich's guest (uncredited)

Анатолий Ларионов

Michurin in his youth (uncredited)

Наталья Садовская

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)

Сергей Антимонов

official (uncredited)

Михаил Гродский

professor (uncredited)

Виктор Матисен

professor (uncredited)

Александр Пелевин

first scientist (uncredited)

Николай Неронов

second scientist (uncredited)

Леонид Князев

worker (uncredited)

Павел Винник

Kartashov's student (uncredited)

Светлана Боголюбова

Natasha (uncredited)

Анатолий Соловьёв

student (uncredited)

Алексей Бахарь

division commander (uncredited)

Николай Лебедев

professor (uncredited)

Андрей Петров

Meshkov (uncredited)

Всеволод Семёнов

secretary (uncredited)

Валериан Казанский

guest (uncredited)

Наталья Садовская

Alexandra Michurina in young age (uncredited)

Александра Васильева

Aleksandra Vasilyevna Michurina