Hollywood has had its fair share of great villains through the years; Darth Vader, The Joker, The Wicked Witch of the West, Loki, Norman Bates, Jaws, Agent Smith, and many others come to mind. But for every truly frightening or memorable antagonist, there's a baddie that's just not bad enough -- or bad in all the wrong ways. Sometimes the performer's just not right for the character, while other times a bad script or bad visual effects turn a villain from intimidating to laughable. 

Check out our list of some of the the worst villains in movie history in the embedded gallery at the bottom of this article.

Do you agree with our picks? Who did we forget?  Share your thoughts in the comments section.