1) Fiend 1) The Joker, for Batman 
archvillain, archvillainy Chief villain, begetter, or ringleader of villainy. Cross references of word families related directly, or indirectly, to: 'master, lead, leading, ruler, ruling, govern': -agogic; agon-; -crat; dom-; gov-; magist-; poten-; regi-; tyran-.