Betrayer

n.

1.

One who, or that which, betrays.

Noun	1.	betrayer - one who reveals confidential information in return for money Synonyms: blabber, informer, squealer, rat
	2.	betrayer - a person who says one thing and does another Synonyms: double-crosser, double-dealer, traitor, two-timer

Benedict Arnold, Brutus, Judas, Judas Iscariot, Quisling, archtraitor, blab, blabber, blabberer, blabbermouth, cockatrice, conniver, conspirator, conspirer, convict, criminal, crook, debaucher, deceiver, defiler, delator, desperado, desperate criminal, despoiler, double agent, double-crosser, double-dealer, felon, fink, fugitive, gallows bird, gangster, gaolbird, informer, intrigant, intriguer, jailbird, lawbreaker, machinator, mobster, narc, nark, outlaw, peacher, plotter, public enemy, quisling, racketeer, raper, rapist, rat, ravager, ravisher, schemer, scofflaw, seducer, serpent, snake, snitch, snitcher, spy, squealer, stool pigeon, stoolie, swindler, talebearer, tattler, tattletale, telltale, thief, thug, timeserver, traitor, treasonist, trimmer, turncoat, two-timer, violator, whistle-blower