Flamelurker from demon souls. He (or she) could make up for the lack of villains and I think his move set would be pretty unique and it is from a PS exclusive
Evil cole- still fights a bad guy at the end of the game and does tasks for the good of empire city. So what if he made a few poor decisions making him "evil" he still fights the villain. Therefore not a villain. If sweet tooth is a villain then there's no Heroes in TM. Calypso is the villain. I could go on all day. Radec is the only villain.