Guest Stars Michael Hanemann as Hans Zielonka Julia Schmitt as Lydia Auerbach Patrick Heyn as Dr. Arndt Bechermann Kulla Jossifidis as Frau Ziegler Arnd Klawitter as Dr. Jochen Kauth Carmen-Maja Antoni as Irmtraut Schäffer Jörg Witte as Pit Schnallerbeck Bernd Moss as Volker Mauk Jens Kipper as Robert