When a television show introduces a new Character or two, it's usually a flip of the coin. They can be a game changer or a game wrecker. Some episodes introduce a new character that changes the show so much, you wonder how the show functioned without them. Other new characters, however, are given luke-warm reception and as such are written out of the show as if they never existed. In this list, we'll be going over some of the most iconic episodes that introduced new characters, for better and for worse.