Peter Ell (2 episodes, 2004-2007)
Dr. Eric Bellmann / ... 3 episodes, 1998-2012
Dr. Simonis / ... (3 episodes, 2005-2010)
Gert Weinbauer / ... (24 episodes, 1986-2007)
Julius Aden (credit only)
Julius Aden (credit only)
Hermann St?rzebecher (credit only)