| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Ben Peel | DS James Olson | Glock 17 | - |
| Gerard Jones | PC Brian Stone | Glock 17 | - |
| Gillian Anderson | Detective Superintendent Stella Gibson | Beretta 92FS | - |
| Michael McElhatton | DI Rob Breedlove | Glock 18C | Airsoft stand in forGlock 17/ Season 1 |
| Niamh McGrady | PC Danielle Ferrington | Glock 18C | Airsoft stand in forGlock 17 |