manipulator

from WordNet (r) 3.0 (2006)
manipulator
    n 1: an agent that operates some apparatus or machine; "the
         operator of the switchboard" [syn: {operator},
         {manipulator}]
    2: a person who handles things manually
from The Collaborative International Dictionary of English v.0.48
Manipulator \Ma*nip"u*la`tor\, n.
   One who manipulates, sometimes in an underhanded or
   fraudulent manner; as, a stock market manipulator.
   [1913 Webster +PJC]
from Moby Thesaurus II by Grady Ward, 1.0
53 Moby Thesaurus words for "manipulator":
      Rasputin, Svengali, VIP, access, agent, bad influence, big wheel,
      calculator, conductor, court, driver, eminence grise, engineer,
      five-percenter, friend at court, functionary, good influence,
      gray eminence, handler, heavyweight, hidden hand, influence,
      influence peddler, influencer, ingroup, intriguer, key, kingmaker,
      lobby, lobbyist, lords of creation, machinator, man of influence,
      maneuverer, open sesame, operant, operative, operator, pilot,
      powers that be, pressure group, runner, schemer,
      sinister influence, special interests, special-interest group,
      steersman, strategist, tactician, the Establishment,
      very important person, wheeler-dealer, wire-puller
antiflux / dictionary / manipulator
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