Igor Ilyinsky

~ as ~

Teleskop / professor Sen-Verbuda

Leonid Kmit

~ as ~

Zhora

Ivan Koval-Samborskyi

~ as ~

agent ugolovnogo rozyska

Yevgeny Gurov

~ as ~

zritel'-assistent na predstavlenii

Ivan Tverdokhleb

~ as ~

cooperator

Antonina Savitskaya

~ as ~

Fenichka - plemyannitsa professora

Grigori Dolgov

~ as ~

zaveduyushchiy klubom

Lev Ivanov

~ as ~

(uncredited)