| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Daniel Bernhardt | Additional Henchman | Smith & Wesson 639 | "XX" (S8E02) |
| Daniel Bernhardt | Additional Henchman | Mossberg 500 Cruiser | "XX" (S8E02) |
| Nathan Fillion | Richard Castle | Colt M4A1 | "XY" (S8E01) |
| Nathan Fillion | Richard Castle | Tavor TAR-21 | "XY" (S8E01) |
| Stana Katic | Kate Beckett | Heckler & Koch P30 | - |
| Toks Olagundoye | Hayley Shipton | Jericho 941 | "XY" (S8E01) |
| Toks Olagundoye | Hayley Shipton | Remington 700 AICS | "Crossfire" (S8E22) |