Horst Schulze as Karl Liebknecht

Lyudmila Kasyanova as Sophie Liebknecht

Ute Ilman as Vera Liebknecht

Zofia Mrozowska as Rosa Luxemburg

Mikhail Ulyanov as V.I. Lenin

Adolf Fischer as

Ulrich Anschütz as Erich Habersat

Jörg Gillner as

Albert Hetterle as

Erika Dunkelmann as

Jutta Hoffmann as Käthe Schreiner

Burkhard Mann as

Fred Delmare as Waldemar Lehmann

Rolf Ludwig as

Harry Hindemith as General von Hohenberg

Walter Plathe as Jugendlicher

Jaecki Schwarz as Fähnrich

Helga Göring as Frau

Rüdiger Joswig as Arbeiter

Christoph Beyertt as Soldat

Erich Mirek as

Siegfried Weiß as

Manfred Zetzsche as

Horst-Tanu Margraf as

Albert Garbe as

Peter Reusse as

Horst Hiemer as

Stefan Lisewski as

Juliane Korén as

Hans Hardt-Hardtloff as

Ekkehard Schall as

Adolf Peter Hoffmann as

Otto Lang as

Werner Godemann as

Harald Halgardt as

Gerd Michael Henneberg as

Günter Junghans as

Martin Trettau as

Carl Heinz Choynski as

Norbert Christian as

Arthur Jopp as

Volkmar Kleinert as

Irma Münch as

Raimund Schelcher as