- Peter Finch
- Umberto Nobile
- Sean Connery
- Roald Amundsen
- Claudia Cardinale
- Valeria
- Hardy Krüger
- Einar Lundborg
- Eduard Martsevich
- Finn Malmgren
- Grigoriy Gay
- Rudolf Samoylovich
- Nikita Mikhalkov
- Boris Chukhnovskiy
- Luigi Vannucchi
- Captain Zappi
- Mario Adorf
- Giuseppe Biagi
- Donatas Banionis
- Adalberto Mariano
- Massimo Girotti
- Giuseppe Romagna Manoja
- Yuriy Solomin
- Felice Trojani
- Otar Koberidze
- Natale Cecioni
- Boris Khmelnitskiy
- Alfredo Viglieri
- Yuriy Vizbor
- Frantisek Behounek
- Nikolay Ivanov
- Kolka Shmidt
- Vladimir Smirnov
- Shelagin
- Tengiz Archvadze
- Renato Alessandrini
- Rein Aren
- Karl Eggi
- Heinz Braun
- Reporter
- Anatoliy Bystrov
- Rinborg's Neighbor in the Hospital Room
- Robert Daglish
- The Reporter
- Feliksas Einas
- Amundsen's Servant
- Roland Engmann
- Duty Officer
- Boris Goldayev
- Kolka Shmidt's Fellow Villager
- Leonid Kanevskiy
- Italian Radio Operator
- Viktor Kharitonov
- Part-bit
- Stanislav Khitrov
- Radio Operator of Icebreaker 'Krasin'
- Irakli Khizanishvili
- Pomella
- Eve Kivi
- The Blonde Lady
- Boris Klyuev
- The Reporter
- Stepan Krylov
- The Boatswain
- Sergey Madyanov
- Part-bit
- Vitaliy Matveev
- Seeing Off
- Galina Mikeladze
- Telegraph Operator
- Dmitriy Mirgorodskiy
- Caratti
- Oleg Mokshantsev
- Pavel Ponomaryov
- Yuriy Nazarov
- Anatoliy Alekseev
- Bruno O'Ya
- Norwegian Radio Operator
- Yevgeniy Orlov
- Mishka
- Gleb Plaksin
- The Reporter
- Ernst Romanov
- The Polar Explorer
- Paul Scofield
- The Main Judge
- Aleksey Sezeman
- The Reporter
- Valeriy Sirovskiy
- Lago
- Nikolay Smorchkov
- The Seaman
- Rogvold Sukhoverko
- Ringborg
- Tamara Timofeeva
- The Woman in the Crowd of People Seeing Off
- Lyudmila Tsvetkova
- Part-bit
- Andrei Vertogradov
- Radio Operator of 'Citta di Milano'
- Aleksandr Yanvaryov
- Straube
- Aleksandra Yozhkina
- The Woman in the Crowd of People Seeing Off
