bad hat, mischief-maker, trouble maker, troublemaker, troubler - someone who deliberately stirs up trouble

offender, wrongdoer - a person who transgresses moral or civil law

bluffer, four-flusher - a person who tries to bluff other people

grifter, scammer, sharper, chiseler, chiseller, swindler, gouger, sharpie, sharpy - a person who swindles you by means of deception or fraud

decoy, steerer - a beguiler who leads someone into danger (usually as part of a plot)

dodger, slyboots, fox - a shifty deceptive person

double-crosser, double-dealer, traitor, two-timer, betrayer - a person who says one thing and does another

falsifier - someone who falsifies

finagler, wangler - a deceiver who uses crafty misleading methods

counterfeiter, forger - someone who makes copies illegally

fortune hunter - a person who seeks wealth through marriage

front man, nominal head, straw man, strawman, figurehead, front - a person used as a cover for some questionable activity

dissembler, hypocrite, phoney, phony, pretender - a person who professes beliefs and opinions that he does not hold

imitator, impersonator - someone who (fraudulently) assumes the appearance of another

faker, imposter, impostor, pseud, pseudo, role player, sham, shammer, pretender, fraud, fake - a person who makes deceitful pretenses

liar, prevaricator - a person who has lied or who lies repeatedly

misleader - someone who leads astray (often deliberately)

charlatan, mountebank - a flamboyant deceiver; one who attracts customers with tricks or jokes

obscurantist - a person who is deliberately vague

sandbagger - someone who deceives you about his true nature or intent in order to take advantage of you

two-timer - someone who deceives a lover or spouse by carrying on a sexual relationship with somebody else

utterer - someone who circulates forged banknotes or counterfeit coins

spiritual being, supernatural being - an incorporeal being believed to have powers to affect the course of human events