| Ae-Ri | 1 | Human |
| Agent | 6 | Human |
| Agent Grey | 1 | Human |
| Agent Hale | 6 | Human |
| Agent Kensington | 58 | Feral Ghoul |
| Agent Mochou | 66 | Ghoul |
| Agent Mochou | 66 | Ghoul |
| Agnes | 1 | Human |
| AI Data Template (Melee Duelling Boss) | 0 | Mothman |
| AI Data Template (Melee Flanking Boss) | 0 | Mothman |
| AI Data Template (Ranged Flanking Boss) | 0 | Mothman |
| AJ | 1 | Human |
| Albino Angler | 25 | Angler |
| Albino Deathclaw | 61 | Deathclaw |
| Albino Hermit Crab | 51 | Hermit Crab |
| Albino Mirelurk Hunter | 34 | Mirelurk Hunter |
| Albino Mongrel | 30 | Wild Mongrel |
| Albino Radscorpion | 38 | Radscorpion |
| Albino Radstag | 16 | Radstag |
| Albino Radstag | 40 | Radstag |
| Albino Radstag | 40 | Radstag |
| Albino Radtoad | 28 | Radtoad |
| Albino Yao Guai | 46 | Yao Guai |
| Alderton | 8 | Mr. Handy |
| Aldridge | 66 | Human |
| Aldridge | 68 | Scorched |
| Aldridge | 66 | Human |
| Alex Guerra | 1 | Ghoul |
| Alexi Droyken | 50 | Human |
| Alexis | 8 | Mr. Handy |
| Alfie | 3 | Feral Ghoul |
| Alicia Faraday | 1 | Human |
| Alien | 1 | Alien |
| Alien | 4 | Alien |
| Alien | 7 | Alien |
| Alien | 9 | Alien |
| Alien | 32 | Alien |
| Alien | 1 | Alien |
| Alien | 39 | Alien |
| Alien | 100 | Alien |
| Alien | 21 | Alien |
| Alien | 14 | Alien |
| Alien | 30 | Alien |
| Alien | 50 | Alien |
| Alien Detonator Drone | 1 | Zetan Drone |
| Alien Detonator Drone | 0.1 | Zetan Drone |
| Alien Drone | 1 | EyeBot |
| Alien Drone | 1 | Zetan Drone |
| Alien Elite Drone | 1 | Zetan Drone |
| Alien Inquisitor | 66 | Flatwoods Monster |