Julius Hofmeister (3 episodes, 2008)
Rainer Saremba (4 episodes, 2007)
Gerd Steiner (8 episodes, 2007)
Josef Hagmayer / ... (3 episodes, 2001-2008)
Herbert Krüger / ... (2 episodes, 2005-2007)
Dr. Schönherr / ... (2 episodes, 2004-2007)
Herbert Groth / ... (10 episodes, 1993)
Prof. Herbert Roßwein / ... (26 episodes, 2001-2008)
Arthur Bauer 4 episodes, 2013
Bodo Behrens 1 episode, 2017
Peter Fuchs 1 episode, 2021