| Episode cast overview, first billed only: |
 | Dieter Bellmann | - | Prof. Gernot Simoni |
| Thomas Rühmann | - | Dr. Roland Heilmann |
| Hendrikje Fitz | - | Pia Heilmann |
| Andrea Kathrin Loewig | - | Dr. Kathrin Globisch |
| Bernhard Bettermann | - | Dr. Martin Stein (credit only) |
| Alexa Maria Surholt | - | Sarah Marquardt (credit only) |
| Jutta Kammann | - | Ingrid Rischke |
 | Rolf Becker | - | Otto Stein |
 | Ursula Karusseit | - | Charlotte Gauss |
| Arzu Bazman | - | Arzu Ritter (credit only) |
| Thomas Koch | - | Dr. Philipp Brentano |
 | Uta Schorn | - | Barbara Grigoleit (credit only) |
| Maren Gilzer | - | (credit only) |
| Cheryl Shepard | - | Dr. Elena Eichhorn (credit only) |
| Steve Windolf | - | Sebastian Maier (as Steve Wrzesniowski) (credit only) |
hd.thomson-multimedia