impostor (n.)
- ape
- beguiler
- bluff
- bluffer
- charlatan
- cheat
- conformist
- copier
- copycat
- copyist
- counterfeit
- counterfeiter
- cuckoo
- deceiver
- dissembler
- dissimulator
- dummy
- echo
- fake
- faker
- forger
- forgery
- frame-up
- fraud
- hoax
- humbug
- hypocrite
- imitation
- imitator
- impersonator
- imposter
- junk
- malingerer
- mime
- mimer
- mimic
- mimicker
- misleader
- mock
- mocker
- mockingbird
- monkey
- mountebank
- parrot
- paste
- pettifogger
- phony
- pinchbeck
- plagiarist
- poser
- poseur
- pretender
- put-on
- quack
- ringer
- rip-off
- sham
- shammer
- shark
- sheep
- shoddy
- shyster
- simulacrum
- simulator
- swindle
- swindler
- tinsel
- trickster