as Kommissar Ritter
as Karl Ebel
as Ruben Vogl(2 eps)
as Narrator (German)(2 eps)
as Jochem Erlemann
as Peter Klettmann(7 eps)
as Torsten Schlegel
as Felix Schemmel
as Jan Römer
as Carsten Altmann
as Prof. Marc Danylenko(1 ep)
as Mark
as Dr. Daniel Tomlin
as Self
as Yaakov Gat
as Max Rohde
as Colonel Ivan Carrera(8 eps)
as Max
as Hans-Peter Kerckow(6 eps)
as Anatol
as Ralf Schmelich(1 ep)
as Rudi Dassler
as Rolf "The Wolf" Dannenberg(5 eps)
as Dirk
as Franz Faber(10 eps)
as Lennard
as Jan
as Martin Hofer 'Josh'
as Prof. Paul Weltz
as Hannes Wenisch
as Mario Klarhöfer(1 ep)
as Erol Yildiz (voice)(26 eps)
as Philipp Becker(1 ep)
as Martin Berg(1 ep)
as Ralf Berger(8 eps)
as Matthias Bröckmann(1 ep)
as Eddie
as Matz(3 eps)
as Ivan Müller
as David Karp
as Bruce
as Ingo Schober(1 ep)
as Daniel Lösche(1 ep)
as Marco
as Uli
as Bernd Steher
as Lorenz
as Charles V
as Alexander
as Christian Wehring(1 ep)
as Monsignore Gruber(1 ep)
as Heinrich von Quiztow
as Friedrich
as Edgar(1 ep)
as Thomas Prang(1 ep)
as Security Agent(1 ep)
as Karl von Sassnitz(1 ep)
as Lars(1 ep)
as Maxim Bohrmann(1 ep)
as Stefan Dorner(1 ep)
as Philipp(1 ep)
as Branco(1 ep)
as Dr. Christian Strobl(1 ep)
as Jens Torbeck(1 ep)
as Karl Kaminski(1 ep)
as Friedrich Welfen(1 ep)
as Joachim Bentele(1 ep)
as Bastian Sommer(1 ep)