| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Jang Yoon-ju | Sim "Nairobi" Young-mun | Heckler & Koch MP5A3 | - |
| Jeon Jong-seo | Lee "Tokyo" Hong-dan | Colt M4A1 | - |
| Jeon Jong-seo | Lee "Tokyo" Hong-dan | Maverick Model 88 shotgun | - |
| Jeon Jong-seo | Lee "Tokyo" Hong-dan | M60 | - |
| Jeon Jong-seo | Lee "Tokyo" Hong-dan | Tokarev TT-33 | - |
| Jeon Jong-seo | Lee "Tokyo" Hong-dan | Glock 17 | - |
| Jeon Jong-seo | Lee "Tokyo" Hong-dan | Beretta 950 Jetfire | - |
| Jeon Jong-seo | Lee "Tokyo" Hong-dan | Sipja YSR 707 | - |
| Jeon Jong-seo | Lee "Tokyo" Hong-dan | AK-74 | - |
| Kim Ji-hoon | Oh "Denver" Taek-su | Heckler & Koch HK416 | - |
| Kim Ji-hoon | Oh "Denver" Taek-su | Glock 17 | - |
| Park Hae-soo | Song "Berlin" Jung-ho | Heckler & Koch HK416 | - |
| Park Hae-soo | Song "Berlin" Jung-ho | Beretta 92FS | Episode 2 |
| Park Hae-soo | Song "Berlin" Jung-ho | Colt M4A1 | Episode 11 |
| Park Hae-soo | Song "Berlin" Jung-ho | M60 | Episode 12 |
| Park Hae-soo | Song "Berlin" Jung-ho | Mk 2 hand grenade | Episode 11 |
| Park Hae-soo | Song "Berlin" Jung-ho | Sipja YSR 707 | Episode 9 |
| Park Hae-soo | Song "Berlin" Jung-ho | Smith & Wesson Model 586 | - |
| Park Hae-soo | Song "Berlin" Jung-ho | Tokarev TT-33 | Episode 1 |