| Episode cast overview, first billed only: |
 | Christiane Hörbiger | - | Dr. Julia Laubach |
 | Peter Bongartz | - | Dr. Arthur Laubach |
| Philipp Fleischmann | - | Wolfgang Laubach (credit only) |
| Paula Polak | - | Elisabeth Laubach |
| Monika Finotti | - | Heidi Mähr |
| August Schmölzer | - | Max Mähr |
| Bibiane Zeller | - | Hertha Mähr (as Bibiana Zeller) |
 | Sissy Höfferer | - | Erna Strubreiter (credit only) |
| Michael König | - | Heinz Strubreiter |
| Ulrike Beimpold | - | Adelheid Sonnleitner (credit only) |
| Wolfram Berger | - | Hans Sonnleitner (credit only) |
 | Fritz Karl | - | Sebastian Reidinger (credit only) |
| Franz Buchrieser | - | Martin Reidinger |
| Peter Faerber | - | Albert Roland |
 | Mark Kleuskens | - | Ruud van Leuven |
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