7
BBC One of the brightest TV villains ever is Sherlock Moriarty, portrayed by Fleabag and Band of Brothers actor Andrew Scott. It's amazing he didn't show up right away.
6
The breakout character avoided entirely falling into the Big Bad cliché, which earned him plaudits for his humor and rebellious spirit.
5
Giancarlo Esposito's character Gus Fring, the antagonist of Breaking Bad, is most known for his graphic demise, in which he collapsed to the ground after losing half of his face in an explosion.
4
Negan (Jeffrey Dean Morgan), one of The Walking Dead's most prominent antagonists, was first shown in the season 6 finale, "Last Day on Earth," and was introduced very late in the series.
3
You on Netflix was different from other TV shows in that Joe (Penn Badgley), the adversary, frequently serves as the primary character.
2
The ultimate mastermind, Crowley was a captivating and cunning guy who could switch between being an evil force and an ally of the Winchester family, making him unpredictable.
1
It's amazing how important Joseph Morgan was to The Vampire Diaries that Klaus, who debuted in season 2, became both a beloved and reviled character so fast.