| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Bobby Lee | Rio Syamsundin/Jeff Carol | AKS-74U | "Goodbye Vietnam" (S09 E16) |
| Costas Mandylor | Abram Sokolov | Taurus PT1911 | "Mountebak" (S9E05) |
| Eddie J. Fernandez | Gunman | IMI Uzi | "Forasteira" (S9E10) |
| Gabriel Olds | Spencer Allen | Glock 19 | "Cac Tu Nhan" (S9E13). |
| Nia Long | NCIS Assistant Director Shay Mosley | Glock 17 | dual-wielded; "Plain Sight" (S9E04) |
| Omid Zader | Herbert Dieter | Glock 17 (Converted to Full Auto) | "Party Crashers" (S9E01) |
| Tim Connolly | Armed man | AKS-47 assault rifle | "Plain Sight" (S9E04) |