| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Adrian Dunbar | Superintendent Ted Hastings | Glock 17 | "Royal Hunting Ground" |
| Craig Parkinson | DI Matthew "Dot" Cottan | Glock 17 | Episode 6 |
| Gregory Piper | Ryan Pilkington | Uzi | Detachable Wood Buttstock version, "Operation Pear Tree" (S05E01) |
| Gregory Piper | Ryan Pilkington | M1911A1 | (S06) |
| Martin Compston | DS Steve Arnott | Heckler & Koch VP9 | - |
| Martin Compston | DS/DI Steve Arnott | Glock 17 | Season 5,Season 6 |
| Stephen Graham | John Corbett | Walther PP | - |
| Stephen Graham | John Corbett | Umarex GPDA | Stand in for Browning Hi-Power |
| Stephen Graham | John Corbett | Norinco Type 56 | - |
| Stephen Graham | John Corbett | Heckler & Koch HK416D | - |