| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Connor Swindells | David Stirling | Webley .455 Mk VI | - |
| Connor Swindells | David Stirling | Thompson M1928A1 | - |
| Connor Swindells | David Stirling | Bren Mk1 | - |
| Connor Swindells | David Stirling | Walther P38 | Ep. 5 |
| Dominic West | Lt. Col. Dudley Wrangel Clarke | Webley .455 Mk VI | - |
| Jack O'Connell | Paddy Mayne | Beretta M1934 | Ep. 2, 6 |
| Jack O'Connell | Paddy Mayne | Colt New Service | - |
| Jack O'Connell | Paddy Mayne | Thompson Submachine Gun | Ep. 3-4 |
| Jack O'Connell | Paddy Mayne | Lee-Enfield No.1 Mk III* | Ep. 5, fitted with scope |
| Tom Glynn-Carney | Cpl./Sgt. Mike Sadler | Bren Gun | - |
| Tom Glynn-Carney | Cpl./Sgt. Mike Sadler | Thompson M1928A1 | - |