| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Brad Kelly | Lyle | M16 | - |
| Brad Kelly | Lyle | M14 | - |
| Colin Cunningham | John Pope | Colt Python | - |
| Colin Cunningham | John Pope | Winchester 1300 | - |
| Connor Jessup | Ben Mason | M1 Carbine | - |
| Dale Dye | Colonel Porter | M4A1 | "Death March" (S2E08) |
| Doug Jones | Cochise | M16 | modified to fire pulse beam |
| Drew Roy | Hal Mason | Smith & Wesson 5906 | - |
| Hector Bucio | Diego | Beretta 92FS | - |
| Hector Bucio | Diego | AKMS | - |
| Laci J Mailey | Jeanne Weaver | M4A1 | "Young Bloods" (S2E04) |
| Maxim Knight | Matt Mason | M4A1 | - |
| Mpho Koaho | Anthony | Springfield Armory M1A | - |
| Noah Wyle | Tom Mason | Taurus Model 689 | "Worlds Apart" (S2E01) |
| Noah Wyle | Tom Mason | DShK | "Worlds Apart" (S2E01) |
| Noah Wyle | Tom Mason | Mossberg 500 | "Homecoming" (S2E06) |
| Peter Shinkoda | Dai | DShK | - |
| Peter Shinkoda | Dai | M4A1 | - |
| Ryan Robbins | Tector | Barrett M82A1 | "Young Bloods" (S2E04) |
| Sarah Carter | Maggie | M72 LAW | - |
| Seychelle Gabriel | Lourdes | M1 Carbine | "Molon Lobe" (S2E07) |
| Ty Olsson | Sgt. Clemmons | Beretta 92FS | - |