as Dr. Welzheim
as Hermann Winkler(1 ep)
as Rainer
as Rolf
as Klaus Wulf(1 ep)
as Stephan Reller
as Felix Althofer(114 eps)
as Hendrik
as Jakob
as Julian Kemper
as Micky(1 ep)
as Rudi
as Lukas Stein(1 ep)