1. a person who copies the appearance, voice, or mannerisms of another person, especially for entertainment
2. a person who pretends to be someone else in order to deceive others

Examples

• The Elvis impersonator performed at the casino every weekend.
• She hired a celebrity impersonator for her birthday party.
• The comedian was known as a skilled impersonator of famous politicians.
• Police arrested the impersonator who had been posing as a doctor.
• The impersonator fooled everyone with his perfect British accent.
• Vegas is famous for its many celebrity impersonators.
• The impersonator was charged with identity theft.