A performer in a pantomime or a masked person in a festive performance.

A person who acts in a dramatic way or pretends to be someone else.

नाटककार

English Usage: He was a mummer at heart, always putting on a show for his friends.

Hindi Usage: वह दिल से एक नाटककार था, हमेशा अपने दोस्तों के लिए एक शो पेश करता था।