| Name | Character | Episodes |
|---|---|---|
| Claes Bang | Dr. Tobias Olsen | 24 |
| Adam Bousdoukos | Mike Brandt | 24 |
| Mike Hoffmann | Stefan Mannhardt | 24 |
| Cem-Ali Gültekin | Berkan Aydin | 24 |
| Rike Schmid | Bea Körber | 1 |
| Bernd Stephan | Karl Walther | 1 |
| Stephanie Stumph | Hanna Berger | 1 |
| Narges Rashidi | Elif | 1 |
| Milton Welsh | Micha | 1 |
| Jochen Nickel | Jupp | 1 |
| Tina Ruland | Frau Ahrens | 1 |
| Claudia Rieschel | Karin Auer | 1 |
| Vedat Erincin | Fatih Aydin | 1 |
| Markus Knüfken | Günther Matuske | 1 |
| Marko Dyrlich | Tom | 1 |
| Lucas Prisor | Paul Wessling | 1 |
| Maximilian Beck | Thomas | 1 |
| Anna Böger | Ulrike Weiß | 1 |
| Sonsee Neu | Greta Wächter | 1 |
| Volker Lechtenbrink | Simon Auer | 1 |