Synonyms and related words :
Machiavellian, behind-the-scenes operator, coconspirator, conniver, conspirator, conspirer, counterplotter, eminence grise, exploiter, gamesman, gray eminence, intrigant, intriguer, kingmaker, logroller, machinator, maneuverer, operator, opportunist, plotter, pork-barrel politician, schemer, strategist, wheeler-dealer, wire-puller,