| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Aleks Paunovic | Assault Team Leader Curtis | Beretta 92FS | "Sisterhood" (S1E03) |
| Callum Keith Rennie | Viktor Booth | Heckler & Koch P7 | Episode 6 |
| Isaiah Washington | Antonio Pope | Heckler & Koch MP5A3 | - |
| Isaiah Washington | Antonio Pope | Beretta 92FS | - |
| Isaiah Washington | Antonio Pope | Jericho 941 | - |
| Isaiah Washington | Antonio Pope | Barrett M82 | - |
| Katee Sackhoff | Sarah Corvus | Heckler & Koch G36 | - |
| Katee Sackhoff | Sarah Corvus | CZ 75 | - |
| Michelle Ryan | Jaime Sommers | Savage 10FP | "Do Not Disturb" (S1E08) |
| Thomas Kretschmann | The Man | Heckler & Koch UMP | "Pilot" (S1E01) |
| Will Yun Lee | Jae Kim | Beretta 92 FS | - |
| Will Yun Lee | Jae Kim | Bruni 8mm M1911 Blank Pistol | - |