as Volodya Prokhorov
as Academician Korostylyov
as Rodion Terentyevich Ugryumov
as Yuliya Aleksandrovna Skurlatova
as Dyomkin
as Lena
as Tanya
as Shibanov
as Kharlamov
as Petrikov
as Tyurin
as Gulyayev
as Valeriy Orlov
as Grandpa Antip
as Sherstyuk
as Scientist
as Research Assistant
as Scientist(uncredited)
