An overactor is someone who exaggerates their emotions or performance in order to draw attention to themselves. This term can be used to describe an actor who is overly dramatic in their performance, or someone who is overly emotional in their reactions. The crossword solutions for the term overactor are EMOTER (6 letters) and HAM (3 letters). EMOTER is a combination of the words emotion and actor, which describes someone who is overly emotional in their acting. HAM is a slang term for an actor who is overly theatrical or melodramatic in their performance.