A person who creates forgeries, falsifies documents with intent to defraud, e.g. to create a false will or illicit copies of currency; counterfeiter.
A person who forges metals.
A manipulator or otherwise generally corrupt person who "games" a system, group of people, or other entity for selfish gains; especially of a political "sell-out" perceived as lacking integrity.
A con artist; someone who pulls confidence games; a swindler, scammer, huckster, hustler, and/or charlatan.