4. Wernher (Fallout 3)
Wernher appears to players in the Fallout 3 expansion, The Pitt. He is an eyepatch-wearing former slave and ex-lackey to The Pitt's tyrannical leader Ishmael Ashur, a resourceful rogue who was enslaved due to a bungled effort to steal Ashur's seat of power, though using his technical know-how, he did manage to free himself. Encounters with Wernher throughout are typically uneasy; he will frequently whine about whichever companions you align yourself with, and generally seems to get along with few. Hell, the guy is even pretty indifferent to his former-fellow slaves, and so it's unsurprising that many players no doubt opted to murder him during the Free Labour quest. That said - and while I also killed him in my playthrough - the guy is such an amusing, cantankerous personality that I'd love to be pestered by him again in F4; it's just a case of making Ashur's death the canonical one. Easy.