as Albert’s father
as Volker Abeler
as Der Arbeiter Pedro Jaquéras / Teresa Carrars Bruder
as Knud Andresen(4 eps)
as Professor Imhoff
as Horst Lichter
as Albert
as Daniel
as Robert
as Professor Gruner(3 eps)
as Zach Urban
as Torsten Büttner
as Frank Baumschulte(2 eps)
as Martin Wildner
as Karl Bichler
as Ronald
as Hermann
as Friedel Weiland
as Pawel Petrowitsch Kirsanow
as Ha-Gü
as Raffael Sobcinski
as Wolf Berger(2 eps)
as Lutz Müller
as Dr. Joachim Freynik(1 ep)
as Alex Steiner
as Wolfgang Schmitz(1 ep)
as Dr. Jonas Berger / Felipe
as Kurt(1 ep)
as Arndt Brunner(9 eps)
as Ferdinand Brüneck(1 ep)
as Lukas Schauttner
as Fränkie
as Hermann Mohrle
as Dr. Hermann Nicolai(1 ep)
as Stefan Hartig(3 eps)
as Pfarrer Hendrik Klein(1 ep)
as Franz Fischer(1 ep)
as Altmann
as Hannes
as Matthias Grimmer
as Michael Abraham(1 ep)
as Klaus Koller(3 eps)
as Professor Kringe(1 ep)
as Oliver Busch(6 eps)
as Oberarzt Gruber(1 ep)
as Ludger Simbek(1 ep)
as Gunther Rinn(1 ep)
as Jan Kelm
as Martin Seibt
as Peter Dittmann
as Martin Herdecker
as Oberscharführer Karl Höhler
as Dieter Striesow
as Sebastian Claasen(1 ep)
as Michael Heitmann
as Wolfgang Fuchs(1 ep)
as Diether
as Thorben Mossmann
as Mattes Geolenk(1 ep)
as Jürgen Eck(1 ep)
as Armin Trenck(1 ep)
as Prof. Dr. Karl-Heinz Haeßler
as Bruno Lasnik(1 ep)
as Self(1 ep)
as Salomon
as Ralf Sandner(1 ep)
as Matthias Mühlenhoff(1 ep)
as Bernd
as Stephan Bertsch, Martin's former boyfriend
as Merles Vater
as Axelrod(1 ep)
as Michael Reidinger(1 ep)
as Andreas Reiner
as Stefan Kramer
as Wilfried Ottrop(1 ep)
as Tim Bergmann
as Paul Zorn(29 eps)
as Günther Schütte, Prisoner Nr. 82
as Herr Kessler(1 ep)
as Fritz Bermann(1 ep)
as Thomas Böhm(1 ep)
as Self(1 ep)
as Peter Wedel
as German E-Chief
as Frank
as Self(1 ep)
as Der Friese
as Self(4 eps)
as Amberg
as Self(1 ep)
as Henning Klatt(1 ep)
as Udo Hoffmann
as Eggers
as Self(1 ep)
as Mike
as Roland Engelhardt(1 ep)
as Norbert Prechtel
as Mandel(1 ep)
as Renner(1 ep)
as Staatsanwalt Böhringer(1 ep)
as Mario Ross(1 ep)
as Dealer
as Self(2 eps)
as Kai
as Thomas Wiesner(1 ep)
as Keule(1 ep)
as Edgar Brüning(1 ep)
as Kellner(1 ep)
as Franz Gebauer(1 ep)
as Self(2 eps)
as Eckart(1 ep)
as Valentin(1 ep)
as Rainer Metz(1 ep)
as Grosche(1 ep)
as Robert Grosche(4 eps)
as Ingo Konzack(1 ep)
as Peter Marquardt(1 ep)
as Markus Mesenburg(1 ep)
as Tom(1 ep)
as Horst Cervinski(1 ep)
as Ralf Schmölke(1 ep)
as Self(1 ep)