As title says it, who's your favorite villian from cartoons, anime, movies, etc.? Post here if you have one. Make sure you mention what show or whatever he/she is from. Give the reason why you like that villian, too.
If you didn't notice already, my favorite is Plankton from the cartoon Spongebob Squarepants because I like his evil plans against Mr. Krabs to steal the secret Krabby Patty formula. Sadly, he always fails. (That's what is so funny about him.)