Male
Caleb Castille can be seen using the following weapons in the following television series:
| Character | Firearm | Notes |
|---|---|---|
| FBI Special Agent Devin Rountree | Glock 17 | "Watch Over Me" (S11E17) |
| FBI Special Agent Devin Rountree | Heckler & Koch HK416 | "Code of Conduct" (S11E22) |
| NCIS Special Agent Devin Rountree | SIG-Sauer P229 E2 | - |
| NCIS Special Agent Devin Rountree | Daniel Defense MK18/Noveske N4Hybrid | - |
| NCIS Special Agent Devin Rountree | DPMS TAC20 | "Through the Looking Glass" (S12E17) |
| NCIS Special Agent Devin Rountree | F&D Defense FD308 | "A Tale of Two Igors" (S12E18) |
| NCIS Special Agent Devin Rountree | Mossberg 500 | "Subject 17" (S13E01) |
| NCIS Special Agent Devin Rountree | BolaWRAP100 | "Subject 17" (S13E01) |