Aleksandr Safronov

Volodya Prokhorov

Igor Vasilev

Academician Korostylyov

Yuriy Nazarov

Rodion Terentyevich Ugryumov

Lyudmila Maksakova

Yuliya Aleksandrovna Skurlatova

Vladimir Nosik

Dyomkin

Olga Gudkova

Lena

Nadezhda Butyrtseva

Tanya

Vladimir Gulyaev

Shibanov

Gennadi Korolkov

Kharlamov

Vladimir Kozelkov

Gennadi Krasheninnikov

Petrikov

Aleksandr Pyatkov

Tyurin

Georgios Sovchis

Gulyayev

Valery Shalnyh

Valeriy Orlov

Vladimir Privalov

Nikolay Shatskiy

Grandpa Antip

Vadim Aleksandrov

Sherstyuk

Natalya Khorokhorina

Aleksey Zolotnitskiy

Scientist

Veleriy Zakharyev

Research Assistant

Andrei Voznesenskiy

Yuri Gusev

Scientist(uncredited)