Actors portray characters in stories such as plays, musicals, films, television shows and radio shows. They engage with the audience and convince them through altered speech patterns, hand gestures and more that they truly are the character. When necessary, actors also change their appearance such as their hair color or body weight to physically portray and embody their character. An actor interprets and portrays characters to entertain an audience on television, film, theater, and other performing art venues. They work in several environments such as theme parks, production studios, theaters, or at a specific filming location. Most actors have other employment in addition to acting.