Wieńczysław Gliński
Captain Grabiński
Aleksander Sewruk
Commander Kozłowski
Jan Machulski
Lieutenant Pilecki
Roland Głowacki
Lieutenant Roland
Andrzej Herder
Second Lieutenant Morawski
Bronisław Pawlik
Mate Rokosz
Zbigniew Filus
Senior Bosman Wacław Pierzchała
Henryk Bąk
Bosman Leon Wiktorczyk
Ignacy Machowski
Bosman Mirta
Michał Gazda
Mate Okoń
Józef Łodyński
Mate Baczek
Tadeusz Gwiazdowski
Bosman Bryt
Jerzy Nowak
Mate Sznuk
Czesław Piaskowski
Bosman Serafin
Marian Nowicki
Polish Attache in Tallin
Kazimierz Wilamowski
Estonian Admiral
Stanisław Milski
Höze, Deputy Commandant at Tallin Harbour
Lech Wojciechowski
Höze's Secretary
Ryszard Filipski
Estonian Soldier
Jerzy Kozakiewicz
Estonian Soldier
Stanisław Bareja
Cook (uncredited)
Henryk Bista
Seaman (uncredited)
Henryk Boukołowski
Seaman (uncredited)
Józef Duriasz
Seaman (uncredited)
Zygmunt Hübner
German Captain (uncredited)
Wlodzimierz Kaczmarski
Seaman (uncredited)
Jerzy Kamas
Seaman (uncredited)
Eugeniusz Kamiński
Officer (uncredited)
Janusz Kłosiński
Doctor (uncredited)
Gustaw Lutkiewicz
British Attache (uncredited)
Andrzej Mrozek
Seaman (uncredited)
Jerzy Rutowicz
Estonian Officer (uncredited)
Kazimierz Talarczyk
Inspecting Officer (uncredited)
Mieczysław Waśkowski
Seaman (uncredited)
Roman Wilhelmi
Seaman (uncredited)
Jan Włodarczyk
Seaman (uncredited)
Andrzej Wykrętowicz
Inspecting Officer (uncredited)
Gerard Zalewski
Wireless Operator (uncredited)
Jerzy Zapiór
Seaman (uncredited)