| Episode cast overview, first billed only: |
 | Horst Schulze | - | Alexander Reither |
| Angelika Waller | - | Valerie 'Wally' Reither |
| Ezard Haußmann | - | Max-Egon Reither |
| Irma Münch | - | Helene Reither |
| Madeleine Lierck | - | Adrienne 'Adi' Reither |
| Norbert Christian | - | Prof. Dr. Friedrich Rankl#1 |
 | Erwin Geschonneck | - | Prof. Dr. Friedrich Rankl#2 |
| Jutta Hoffmann | - | Ottilie Rankl |
| Roland Woldag | - | Franz-Ferdinand Rankl |
 | Angelica Domröse | - | Irene von Claudi |
 | Manfred Krug | - | Marko Gelusich |
| Márta Rafael | - | Baronin Amalthea von Arnthem |
| Lutz Jahoda | - | Leopold 'Poldi' von Wrbata |
| Erika Pelikowsky | - | Karoline von Wrbata-Treuenfels |
| Wolfgang Penz | - | Joseph Prokop |
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