Analysis: Sitcom Arch-Nemesis
This character is almost never one of the main cast. Exceptions to that rule include Mimi, Drew's nemesis from The Drew Carey Show
, who is the second main character of the series; and Marcy from Married... with Children
, who started out as just an ultra-nice neighbour but wound up as Al's cackling nemesis. An all-purpose jerkass
along the lines of Frank Burns from Mash
doesn't count, since he's hated by everyone equally.