| impostor(noun, person, fake, crook) |
| deceiver(noun, person, fake, phony) |
| informer(noun, person, fraud, turncoat) |
| back-stabber(impostor, renegade, turncoat, conspirator) |
| backslider(noun, person, fraud, impostor) |
| conspirator(impostor, renegade, turncoat) |
| double-crosser(crook, rascal, rogue, trickster) |
| snake(impostor, renegade, turncoat, conspirator) |
| traitor(noun, person, turncoat, conspirator) |
| two-timer(noun, person, fraud, impostor) |
| Benedict Arnold(expression, impostor, renegade, turncoat) |
| apostate(impostor, renegade, turncoat, conspirator) |
| fink(impostor, renegade, turncoat, conspirator) |
| intriguer(impostor, renegade, turncoat, conspirator) |
| judas(impostor, renegade, turncoat, conspirator) |
| quisling(impostor, renegade, turncoat, conspirator) |
| rebel(turncoat, conspirator) |
| snitch(impostor, renegade, turncoat, conspirator) |
| snitcher(impostor, renegade, turncoat, conspirator) |
| squealer(impostor, renegade, turncoat, conspirator) |