Igor Ilyinsky
Teleskop / professor Sen-Verbuda
Leonid Kmit
Zhora
Ivan Koval-Samborskiy
agent ugolovnogo rozyska
Yevgeny Gurov
zritel'-assistent na predstavlenii
Ivan Tverdokhlib
Cooperator
Antonina Savitskaya
Fenichka
Grigori Dolgov
zaveduyushchiy klubom
Lev Ivanov
(uncredited)
Gabriel Nelidov-Frenkel
Doctor (uncredited)
B. Movchan
Kotya
A. Suchenko
Ivan Lagutin
