Satan (South Park)

Satan is a villain from South Park - however unlike many portrayals of the ultimate evil he is portrayed instead as a very flawed antihero and is also openly gay, he has featured heavily in the series as well as the movie and was (in)famous for his relationship with the real-life dictator Saddam.

Ironically Satan is often portrayed as being less malevolent than Saddam but at the same time is the Lord Of Hell itself and as such is still an antagonist - though he doesn't really act like it too often.