Yuri Belyayev

~ as ~

Nikolai Nikonov

Svetlana Bragarnik

~ as ~

Kira Nikonova

Lyubov Kalyuzhnaya

~ as ~

Maria Petrovna

Vadim Makarovskiy

~ as ~

Aleksandr Kluyev

Nozheri Chonishvili

~ as ~

professor Ivan Revazovich Gedevanov

Vladimir Varentsov

~ as ~

captain Petrakov

Konstantin Sarynin

~ as ~

lieutenant Antipov

Loghman Kärimov

~ as ~

private Gadzhibekov

Yevgeniy Liskonog

~ as ~

Zhdanov

Konstantin Lukashov

~ as ~

boat captain Ganichev