- Mala Emde - Paula Banholzer
- Franz Hartwig - Young Caspar Neher
- Markus Hering - Brecht's Father
- Kerstin Thielemann - Marie Röcker
- Stella Adorf - Sophie Brecht
- Thimo Meitner - Walter Brecht
- Hannes Wegener - Dr. Lion Feuchtwanger
- Friederike Becht - Marianne Zoff
- Filip Čáp - Camillus Recht
- Jessica McIntyre - Marta Feuchtwanger
- Philipp Schenker - Herbert Jhering
- Leonie Benesch - Young Elisabeth Hauptmann
- Anatole Taubman - Ernst Josef Aufricht
- Ole Eisfeld - Harald Paulsen
- Franz Dinda - Egon Monk
- Laura de Boer - Isot Kilian
- Maria Dragus - Regine Lutz
- Ernst Stötzner - Caspar Neher
- Matthias Rheinheimer - Paul Albert Krumm
- Theo Lingen - Himself (archive footage)
- Vincent Redetzki - Martin Pohl
- Karolina Horster - Käthe Rülicke
- Anna Herrmann - Käthe Reichel
- Marie Luise Stahl - Angelika Hurwicz
- Jaroslava Laufenová - Elisabeth Hauptmann
- Thomas Meinhardt - Wilhelm Girnus
- Maximilian Klas - Manfred Wekwerth
- Petra Bučková - Gerda Goedhart
- Jan Šantroch - Kamper
- Götz Schubert - Ernst Busch
- Regine Lutz - Herself - Actress
- Charles Laughton - Galileo (voice)
- Egon Monk - Himself (archive footage)
- Walter Ulbricht - Himself (archive footage)
- Iósif Stalin - Himself (archive footage)
- Heinrich Ambrosch
- Frieder Wohlfarth
- Hans-Peter Ströer
Burghart Klaußner interpreta a Bertolt Brecht en la serie.
Tom Schilling hace el papel de Young Bertolt Brecht.
Adele Neuhauser interpreta a Helene Weigel en la serie.
Trine Dyrholm interpreta a Ruth Berlau en la serie.
Lou Strenger interpreta a Young Helene Weigel en la serie.
Petr Stach interpreta a Singer and hurdy gurdy en la serie.
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