Mikhail Ivanovich Kalinin
Ivan Vladimirovich Michurin
Terentiy
Kartashov
Khrenov
father Khristofor
Bykov
postman
Ryabov
Sinitsyn
Lesnitskiy
Mayer
Wallace Beard
translator
peasant
selectionist (uncredited)
professor Kigunov (uncredited)
Pashkevich (uncredited)
Pashkevch's wife (uncredited)
Pashkevich's guest (uncredited)
Michurin in his youth (uncredited)
Michurina in her youth (uncredited)
Bykov's guest (uncredited)
member of the revkom (uncredited)
Shurusha (uncredited)
official (uncredited)
professor (uncredited)
first scientist (uncredited)
second scientist (uncredited)
worker (uncredited)
Kartashov's student (uncredited)
Natasha (uncredited)
student (uncredited)
division commander (uncredited)
Meshkov (uncredited)
secretary (uncredited)
guest (uncredited)
Alexandra Michurina in young age (uncredited)
Aleksandra Vasilyevna Michurina
