The Secret of Two Oceans (1957)

Sergey Stolyarov

Vorontsov

Igor Vladimirov

Skvoreshnya

Pavel Luspekayev

Kartsev, senior lieutenant of state security

Mikhail Gluzskiy

Ivashev

Sergei Golovanov

Gorelov, inzhener-mekhanik

Pyotr Sobolevsky

Druzhinin, assistant commander

ვახტანგ ნინუა

Arsen Davidovich Lordkipanidze, professor, ichthyologist

Sergei Komarov

Andrey Nikolaevich, professor, oceanologist

Antonina Maksimova

Olga Ivanovna Bystrykh, doctor of the Pioneer submarine

Leonid Pirogov

Ivan Nikolayevich Bystrykh, father of Olga Bystrykh

Troady Dobrotvorsky

Vasily Ivanovich Bazov, Colonel of State Security

Irina Preis

Sidorina, administrator of the Intourist hotel in Riga

Igor Bristol

Pavlik, son of the captain of the ship "Arktika"