| Actor | Role |
|---|---|
 Rainer HunoldDr. Peter Sommerfeld | Dr. Peter Sommerfeld |
 Anja KruseNora Hansen | Nora Hansen |
 Justine del CorteMaria Trebiani | Maria Trebiani |
 Nina HogerIrene Kürschner | Irene Kürschner |
 Arnfried LercheDr. Niemeier | Dr. Niemeier |
 Michele OliveriLuca Perugini | Luca Perugini |
| RRaúl PeralesDr. Schmitt | Dr. Schmitt |
 Giulio RicciarelliMaurizio Trebiani | Maurizio Trebiani |
 Bernhard SchirDr. Kerner | Dr. Kerner |
 Waltraud HabichtNot listed | Not listed |