- as Dr. Joachim Brotesser
- as Dr. Eberhard Scheu
- as Dr. Franz Pacek
- as Dr. Martina Behrend
- as Dr. Robert M. Voss
- as Dr. Nasrin Fichtel
- as Gisela Ebert
- as Helmut Brenneke
- as Andreas Schenk
- as Veronica Bleibtreu
- as Sabine 'Bine' Emmerich
- as Dorothea Wegener
- as Vivian Cerny
- as Nico Beier
- as Walter Hentze
- as Carla Kroll
- as Martin Kroll
- as Max Kroll (as Bjarne I. Mädel)
- as Herr Sanders
- as Armandus
- as Ehefrau Thoraxpatient
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