liv and maddie, also known as liv and maddie: cali style in its fourth season, is an american teen sitcom. it was created by john d. beck and ron hart. it originally aired on disney channel from july 19, 2013 to march 24, 2017. the show stars dove cameron in a dual role as identical twin sisters. they have completely different personalities and are best friends. liv is an actress. she has come back to her home after living in hollywood for four years. she was the star of a popular television show called "sing it loud!". maddie is a basketball prodigy. the show is about liv having to get used to normal family life again after production on "sing it loud!" ended. it is also about the two sisters being best friends despite their different personalities and different interests. the show also stars joey bragg, tenzing norgay trainor, kali rocha, and benjamin king. the characters they play are joey rooney, parker rooney, karen rooney, and pete rooney. joey and parker are liv and maddie's younger brothers. karen and pete are their mother and father. in the last season of the show, lauren lindsey donzis joined the cast. she played liv and maddie's younger cousin ruby. ruby becomes their "sorta-sister". her character replaced pete. pete was not in any of the episodes of the fourth season.