Other forms: impersonators
An impersonator is somebody who performs as another person. An Elvis impersonator, a celebrity impersonator, a police impersonator.
As entertainment it is a whole trade, and the Elvis ones alone number in the tens of thousands. As a crime it is serious: a police impersonator is committing a specific offence, and the word covers both without changing shape.
1nounimpersonatorSomebody who performs as another person.
“The comedy club hired an impersonator who could sound exactly like famous actors.”
impersonator is a person.
From impersonate + -or.
Etymology from Wiktionary, CC BY-SA