- as Dr. Eberhard Scheu
- as Dr. Robert M. Voss
- as Dr. Maria Jaspers
- as Dr. Farouk Bennacef
- as Dr. Lars Vonderwerth (as Klaus Schreiber)
- as Gisela Ebert
- as Helmut Brenneke
- as Veronica Bleibtreu
- as Dorothea Wegener
- as Charlotte Marquardt (as Christina Henny Reents)
- as Tillmann 'Till' Peters
- as Leo Kern
- as Rüdiger Hansen
- as Lars Benrath
- as Benno Stelzer
- as Birgit Lanz
- as Hartmut Lanz
- as Evelyn Gerster
- as Thomas Gerster
- as Martin Lauer
- as Katja Lauer
- as Haustechniker
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