Fallout

Brian Wilks, but more because of implementation than his character alone. Troubles in Greyditch/finding him a home feels like an early midgame quest that gets forced upon you almost right out the vault. With all the scattered locations, the perk/skill checks in his dialog you likely haven't had time to invest in, and the ants can easily be a problem for low level characters. The fact that he spawns in one of the areas you're very likely to go to right away (Either for Moria or the subway entrance) feels scummy when you probably have to put the quests on hold for a little bit if you want to get the most out of it. Your character doesn't know places like Rivet City or Paradise Falls exists yet, he ends up being stuck in Greyditch for a while anyway. All the while you have to hear about how you're neglecting him on the radio. He's super annoying through no direct fault of his character (unless you find the child NPCs annoying by default, then the annoyances stack)