Konstantin Sorokin
- Andrey Slonov
- (as K. Sorokin)
Vladimir Alekseyenko
- Aleksey Stepanovich
- (as V. Alekseyenko)
Elena Dobronravova
- Nina Savina
- (as Ye. Dobronravova)
Mikhail Kozakov
- Belov
- (as M. Kozakov)
Gurgen Tonunts
- Iliescu
- (as G. Tonunts)
Evgeniy Teterin
- Glavnyy inzhener
- (as Ye. Teterin)
Vladimir Emelyanov
- Kazanskiy
- (as V. Yemelyanov)
Boris Rudnev
- Sakhonin
- (as B. Rudnev)
Lembit Ulfsak
- Volodya Myuller
- (as L. Ulfsak)
Olev Eskola
- Herr Tagner
- (as O. Eskola)
Heino Mandri
- Jundt
- (as H. Mandri)
Pavel Vinnik
- sosed Krafta
- (as P. Vinnik)
Yelena Sanko
- Frau Becker
- (as Ye. Sanko)
Galina Bulkina
- Kira
- (as G. Bulkina)
Zinaida Dyakonova
- maty Belova
- (as Z. Dyakonova)
Daniil Ilchenko
- Shcherbakov professor
- (as D. Ilchenko)