[L.J.Steele]

Hans Gruber, Die Hard -- a villain with wits and a touch of class

Mayor Wilkins -- Buffy. A man who keeps his promises. Clean, neat, polite, and utterly ruthless

Problem with several of the witty villians is keeping them alive long enough for the PCs to appreciate them -- PCs have a habit of shooting first and riffling the body. Also hard for the PCs go appreciate hands-off masterminds unless you have, in effect, cut scenes.