| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Huh Joon-ho | Eun Chang-soo | Heckler & Koch P7M13 | Episode 12 |
| Jang Seung-jo | Lee Gang-mu | AKM | Episode 13 |
| Jang Seung-jo | Lee Gang-mu | Colt M1911A1 | Episode 1 |
| Jang Seung-jo | Lee Gang-mu | Smith & Wesson Model 36 | Episode 5 |
| Jang Seung-jo | Lee Gang-mu | Colt M16A1 | Episode 13 |
| Jung Hae-in | Lim Soo-ho | Beretta 92FS | - |
| Jung Hae-in | Lim Soo-ho | Colt M1911A1 | - |
| Jung Hae-in | Lim Soo-ho | AKM | - |
| Jung Hae-in | Lim Soo-ho | M67 Hand Grenade | - |
| Jung Hae-in | Lim Soo-ho | RGD-5 hand grenade | - |
| Kim Jisoo | Eun Yeong-ro | Walther PPK | Episode 7 |
| Park Sung-woong | Nam Tae-il | Colt M1911A1 | Episode 15 |