Cast
Vladimir Gardin
Professor Shakhrov
Nikolay Kutuzov
Kuznetsov
MT
M. Tulupov
Professor Yaroshevskiy
KD
Khakim Davletbekov
Khakim
Yevgeniya Pyryalova
Zhenya Maltseva
BA
Boris Azarov
Zaretskiy
KT
Kheyhana Tastakhova
Young kazakh woman
SundefinedG
Sergey Golubev
Telegraph operator
VZ
Viktor Zakharov
Guryev, student (uncredited)
Nikolai Michurin
Factory worker (uncredited)
VR
Vladimir Romashkov
Scientist (uncredited)
VS
Vladimir Stukachenko
Factory worker (uncredited)
VC
Vladimir Chobur
Komsomol member (uncredited)