Тайна Кара-Тау

Eliana Dugina

Young Kazakh girl

Kheyhana Tastakhova

Young kazakh woman

Сергей Голубев

Telegraph operator

V. Zakharov

Guryev, student (uncredited)

Николай Мичурин

Factory worker (uncredited)

Владимир Ромашков

Scientist (uncredited)