Sergei Stolyarov

~ as ~

Vorontsov

Igor Vladimirov

~ as ~

Skvoreshnya

Pavel Luspekayev

~ as ~

Kartsev

Mikhail Gluzskiy

~ as ~

Ivashev

Sergei Golovanov

~ as ~

Gorelov, inzhener-mekhanik

Pyotr Sobolevsky

~ as ~

Druzhinin, assistant commander

Vakhtang Ninua

~ as ~

Arsen Davidovich Lordkipanidze, professor, ichthyologist

Sergey Komarov

~ as ~

Andrey Nikolaevich, professor, oceanologist

Antonina Maksimova

~ as ~

Olga Ivanovna Bystrykh, doctor of the Pioneer submarine

Leonid Pirogov

~ as ~

Ivan Nikolayevich Bystrykh, father of Olga Bystrykh