Identification Marks None

Piotr Garlicki

Feliks

Grigori Abrikosov

Azef

Barbara Bargiełowska

Róza Luksemburg

Donatas Banionis

Harting

Oleg Basilashvili

Kiryl Prokopiewicz Nikolajew (as Oleg Basilaszwili)

Agata Rzeszewska

Julia (as Agata Keschenska)

Eve Kivi

Aldona

Janusz Kłosiński

Zbigniew Norowski

Danuta Kowalska

Helena Górowska

Marian Łącki

Julian Marchlewski

Jerzy Matałowski

Wlodzimierz Notten

Yuri Medvedev

John Scott (as Jurij Miedwiediew)

Valentin Nikulin

Karbowski (as Walentin Mikulin)

Andrey Mironov

Glasov (as Andriej Mironow)

Yuriy Nazarov

Prochorow (as Jurij Nazarow)

Marek Nowakowski

Wincenty

Pavel Pankov

Szewiakow (as Pawel Pankow)

Andrzej Wasilewicz

Maciej Grybas

Krystyna Maciejewska-Zapasiewicz

Worker Wanda (as Krystyna Zapasiewicz)

Jerzy Cnota

Comrade (uncredited)

Mieczysław Janowski

Comrade (uncredited)

Anatoliy Bobrovskiy

Director

Lika Averbakh

Assistant Director

Romuald Staszkiewicz

Assistant Director

Jacek Butrymowicz

Assistant Director

A. Ovchinnikov

Second Assistant Director

A. Poroshin

First Assistant Director

T. Yanakiyeva

Second Assistant Director

Ewa Przedpełska

Third Assistant Director

Yulian Semyonov

Writer

Jan Pietrzak

Lyricist

Anatoliy Stepanov

Script Editor

Yelena Skidanenko

Script Editor