| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Dean Baykan | Jim Black | KSC M93R | "Der Kleine" |
| Dietmar Huhn | Police Officer Horst 'Hotte' Herzberger | SIG-Sauer P228 | Ep. "Blackout" |
| Dino Nolting | Robert | Glock 17 | Ep. "Truckstop" |
| Gottfried Vollmer | Police Officer Dieter Bonrath | SIG-Sauer P225 | Ep. "Truckstop" |
| Hans Kremer | Dr. Harald Exner | Glock 17 | Ep. "Der Kleine" |
| Marc Richter | Max Seefeld | Walther P38 | Ep. "Falsches Spiel" |