Related Clues:

• Mimicry expert
• Frank Caliendo, for one
• One who's often not himself?
• One playing the copycat
• "Me too" sort
• "Monkey see, monkey do" practitioner
• One making a good impression?
• Impressionist?
• Seer-and-doer
• One executing a takeoff?
• Expert at impersonations
• Imitative artist
• Expert in mimicry
• One who might have an original imitation
• Duplicator