Director/a
Adolf Minkin
DIRECTOR/A
Igor Sorokhtin
Reparto (por orden de créditos)
Gennadiy Michurin
Professor Gorn
Yuriy Tolubeev
Popov - Geologist
Konstantin Adashevsky
Chernyavskiy - Geologist
Serafim Azanchevskiy
Foreigner - Professor Jefferson
Georgi Orlov
Geologist
Boris Feodosyev
Nikolay Dubinskiy
Rakhim
Solomon Mikhoels
Guide
Yakov Malyutin
Grand Duke
Kasim Mukhutdinov
Said
Sergei Karnovich-Valua
Chairman of the Academic Council (uncredited)
Ursula Krug
Student at the Party (uncredited)