as Prof. Steinbacher
as Romanus Schachner
as Prof. Uwe Kemke(1 ep)
as Theo Warnel(1 ep)
as Mark Braun(2 eps)
as Dr. Günther Bauer(1 ep)
as Magnussen
as Peter(1 ep)
as Stefan Schneider
as Bernhard Neubauer
as Alexander Schubert
as Bauer Franz
as Lukas(1 ep)
as Martin Steiner(1 ep)
as Anton Werner(1 ep)
as Sebastian Koblenz(1 ep)
as Markus Lasnig(1 ep)
as Rainer Krüger
as Olaf Kreuzenbeck(1 ep)
as Niclas Söderlind(1 ep)
as Michael Danner
as Martin Schiff(35 eps)
as Tom Berens
as Dr. Markus Geisler
as Martin Veitel(1 ep)
as Alexander Moser
as Waldemar Fiedler(1 ep)
as Sebastian Seipelt(1 ep)
as Gerhard Lürzer(1 ep)
as Max Hauser(1 ep)
as Henning Bülow
as Amadeus
as Polizist(1 ep)
as Carabiniere(1 ep)
as Herr Isak, Fertigteilhausverkäufer
as Heinz
as Nico
as Jakob Katz
as Marcus Degen(1 ep)
as Stiefbruder
as Emil Redl(1 ep)
as Florian
as Wolfgang Amadeus Mozart
as Bernd Landau(1 ep)
as Martin Thaler(1 ep)