Name: Sometimes in summer
Cast: Igor Ilyinsky, Leonid Kmit, Ivan Koval-Samborskyi, Yevgeny Gurov, Ivan Tverdokhleb

Igor Ilyinsky

(Teleskop / professor Sen-Verbuda)

Leonid Kmit

(Zhora)

Ivan Koval-Samborskyi

(agent ugolovnogo rozyska)

Yevgeny Gurov

(zritel'-assistent na predstavlenii)

Ivan Tverdokhleb

(cooperator)

Antonina Savitskaya

(Fenichka - plemyannitsa professora)

Grigori Dolgov

(zaveduyushchiy klubom)

Lev Ivanov

((uncredited))