| The criminal psychologist Richard Brock teaches at the University of Vienna. He used to work as a psychologist until his wife took her own life and he lost his license on suspicion of incorrect treatment. In the meantime he has developed a reputation as a particularly good interrogation specialist and is therefore called in by the police in special cases. |
| Name | Character | Episodes |
|---|---|---|
| Heino Ferch | Richard Brock | 9 |
| Sabrina Reiter | Petra Brock | 9 |
| Ursula Strauss | Maria Ulmer | 1 |
| Tobias Moretti | Manfred Reiser | 1 |
| Benjamin Sadler | Johannes Rink | 1 |
| Hary Prinz | Klaus Willer | 1 |
| Julia Koschitz | Clara Rink | 1 |
| Friedrich von Thun | Karl Ulmer | 1 |
| Narges Rashidi | Leila Nymann | 1 |
| Harald Schrott | Peter Bode | 1 |
| Karl Fischer | Ludwig Pfeiler | 1 |
| Inge Maux | Brigitte Pliem | 1 |
| Nina Proll | Vera Angerer | 1 |
| Mavie Hörbiger | Eva Faller | 1 |
| Simon Hatzl | Idhofer | 1 |
| Lukas Miko | Marc Nymann | 1 |
| Cornelia Ivancan | Uta | 1 |
| Stefan Kurt | Dr. Michael Sand | 1 |
| Fritz Karl | Gerald Pliem | 1 |