| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Asami | Henchwoman | Kel-Tec KSG | (Ep. 01) |
| Joey Iwanaga | Yamada's driver | KRISS Vector | Episode 1 |
| Kaho | K | Beretta 92FS | - |
| Kaho | K | Beretta 92G Elite 1A | (Ep. 07) |
| Kaho | K | Flintlock Pistol | (Ep. 07) |
| Kôhei Takeda | Takumi Kaga | M1911A1 | - |
| Kôhei Takeda | Takumi Kaga | Smith & Wesson Model 10 | (Ep.6) |
| Kôhei Takeda | Takumi Kaga | Heckler & Koch MP5A3 | (Ep.6) |
| Takumi Saitoh | Manami's Boyfriend | Smith & Wesson Model 10 | (Ep. 01) |