| Name | Character | Episodes |
|---|---|---|
| Merab Ninidze | Dr. Amin Ballouz | 18 |
| Julia Richter | Dr. Barbara Forster | 18 |
| Daniel Fritz | Dr. Mark Schilling | 18 |
| Nadja Bobyleva | Dr. Michelle Schwan | 12 |
| Michael Kind | Prof. Frey | 10 |
| Helene Grass | Eva Schmidt | 7 |
| Barbara Philipp | Tankstellenbesitzerin Cindy | 3 |
| Birge Schade | Doreen Bahme | 1 |
| Lena Klenke | Emmi | 1 |
| August Zirner | Herr Lampert | 1 |
| Bernhard Piesk | Tom Schäfer | 1 |
| Ursula Werner | Rosa Lehmann | 1 |
| Dietrich Hollinderbäumer | Norbert Willeke | 1 |
| Inka Friedrich | Regina Schucht | 1 |
| Christoph Schechinger | Ralf Gottfriedsen | 1 |
| Alissa Jung | Anja Schäfer | 1 |
| Carmen-Maja Antoni | Grete Meier | 1 |
| Anna Hausburg | Vivian | 1 |