Who can help me find a name for the "bad guy" of my book?

Well, normally I would need more detail than that. If he was born in a particular time period you should look for a name that comes from that time period. Never use modern names in historical fiction. You can find names that mean a certain thing, Damien mean heart and Shale is a kind of stone. Deric means strong, Elric means elven king. a href="http://www.20000-names.com/" rel="nofollow"http://www.20000-names.com//a is a great site, if a bit spammy.