Third, the actor is vulnerable. Great actors share the parts of themselves that most people keep hidden. They are always naked. (Some are literally naked, but I’m talking about emotional nakedness.) Bad actors are guarded. They don’t want to share the parts of themselves that are ugly, mean, petty, jealous, etc. An actress is a person who portrays a character in a performance. The actor performs “in the flesh” in the traditional medium of the theatre or in modern media such as film, radio, and television.