The websites below list famous literary antagonists:
http://www.funtrivia.com/trivia-quiz/Literature/Literary-Antagonists-231861.html
This website provides a trivia game on famous literary antagonists. How many will you know?
http://www.telegraph.co.uk/culture/books/3560987/50-greatest-villains-in-literature.html
This article compiles and briefly discusses 50 notable literary villains.
http://www.ew.com/ew/article/0,,20268412,00.html
In this article, Stephen King lists his top 10 literary villains (all save one are antagonists; one is a villain protagonist).
Source: See Above