Ralf Drexler

as Headmaster Rollberger (2 episodes)

as Thomas Ludwig (2 episodes)

as Dr. Schwarz

as Mandant

as Manager (1 episode)

as Helmut Jung (1 episode)

as Peter Schmitz (1 episode)

as Hausmeister (1 episode)

as Dr. Pilz (1 episode)

as Johannes Brettschneider (1 episode)

as Dr. Schneider (1 episode)

as Max Dehlens (1 episode), as Peter Wätzold (1 episode), as Peter Backes (1 episode)