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)