Making a new villain...

Hey everyone, I am beginning to think of ideas for a villain in a story I am in the process of writing and truth be told I am in desperate need of new ideas besides my own. Please help would be muchly appreciated.

You could make an evil knight, or a black dragon.

Perhaps a "Fallen Hero" would be good
you know a person whom has played or is beleaved to be of good intent when in fact they are wolf among sheep?
or perhaps a nobody turned power freak...someone finds a key to power allowing for revenge on the world that they detest...
or perhaps just your shitty "Iam evil suck it up type" Ex- 99% of Villians : P
as far as what type of Villian (Knight,mage,dragon,crazy hobo with a rabbit up his arse : D )...hmmm iam sure you can think of something

How about the Drusilla type? Has a sweet and innocent tone of voice but says totally crazy, occasionally sick and twisted things?

ie. "I met an old man. Didn't like him. He got stuck in my teeth. But then the Moon started whispering to me... All sorts of dreadful things." Drusilla, in Becoming, Part 1

here's a tip, if you're going for comedic, make him the archetypical cliched villain, if your going for serious, avoid cliches as much as possible.

You could make a villain who is the product of a decending line of magical beings from a great war thousands of years ago. His ancesters were at one point average wizards or even simple civilians but the side they were on got desperate and began making people into magical weapons. Those magical weapons reproduced, hence this villain is the decendant of the experiments of desperate wizards. You could practically give such a being limitless power but I think that it would be awesome if you made him into something similar to freddy kreuger but not as gay, meaning one who can tamper with dreams and cause severe harm from within his victim's mind. (medieval)

If you're looking for a modernized or futuristic villain, either a crazy scientist in a huge and very intricate, awesome mech, or a cyborg or... hitler.