Тайна Кара-Тау

Professor Shakhrov

Kuznetsov

Professor Yaroshevskiy

Khakim

Zhenya Maltseva

Zaretskiy

Young kazakh woman

Telegraph operator

Guryev, student (uncredited)

Factory worker (uncredited)

Scientist (uncredited)

Factory worker (uncredited)

Komsomol member (uncredited)

Director

Writer

Writer

Writer

Director of Photography

Production Design