| impostor(noun, person, fake, cheat, phony) |
| hypocrite(noun, person, fake, phony) |
| double-crosser(noun, source, crook, sneak) |
| traitor(noun, person, cheat, informer) |
| quisling(impostor, renegade, turncoat, hypocrite) |
| two-timer(fraud, phony, crook, trickster) |
| Benedict Arnold(expression, informer, rat, impostor) |
| Judas(noun, impostor, renegade, turncoat) |
| apostate(impostor, renegade, turncoat, hypocrite) |
| back-stabber(impostor, renegade, turncoat, hypocrite) |
| backslider(fraud, phony, crook, trickster) |
| conspirator(noun, informer, rat, impostor) |
| defector(impostor, renegade, turncoat, hypocrite) |
| deserter(impostor, renegade, turncoat, hypocrite) |
| fink(source, sneak, informer, rat) |
| informer(source, fraud, phony, crook) |
| intriguer(noun, informer, impostor, renegade) |
| miscreant(impostor, renegade, turncoat, hypocrite) |
| rebel(turncoat, conspirator) |
| renegade(impostor, turncoat, hypocrite, conspirator) |