Question: Who is the main character in liv and maddie?

Disambiguated questions and answers:
context: A significant feature of the series is that Dove Cameron plays dual roles, one being Liv, an actress who has returned to her home after starring on a popular television series in Hollywood for four years, and the other one being Maddie, Liv's identical twin who remained behind. Another significant feature of the series are documentary-style cutaways where characters speak to the viewers to explain their opinions on various situations in each episode.
question: Who plays both main characters in the tv show Liv and Maddie?
short_answers: Dove Cameron
wikipage: Liv and Maddie
context: Actress Liv Rooney is a girly girl who has just returned to her birthplace of Stevens Point, Wisconsin, after finishing a four-year stint in Hollywood, filming a popular television series called "Sing It Loud!" Her identical twin sister, Maddie, a tomboy with a facility for sports and a particular talent for basketball, welcomes Liv back home with open arms. The twins have two younger brothers: Joey, a typical awkward teen who is one year younger than the twins, and Parker, a clever tween with a mischievous personality and the youngest child of the Rooney family. Their parents are Karen, the high school psychologist and later the high school's vice principal, and Pete, the coach of Maddie's high school basketball team who later accepts a position as the coach of a college team in Beloit, Wisconsin. The series revolves around Liv adjusting to normal family life after her successful career in Hollywood. Most events take place at the Rooney residence or at Ridgewood High School. At the end of the third season, the Rooney house collapses and Maddie enrolls in a college in Los Angeles, California. This prompts the rest of the Rooneys, except Pete who remains in Wisconsin to continue his coaching job, to move to Malibu, California, to take up residence with Karen's younger sister, Dena, and her daughter, Ruby, where the series' fourth season takes place.
question: Who is the main character in Liv and Maddie who is described as an actress who has returned home from Hollywood?
short_answers: Liv Rooney
Liv
wikipage: Liv and Maddie
context: A significant feature of the series is that Dove Cameron plays dual roles, one being Liv, an actress who has returned to her home after starring on a popular television series in Hollywood for four years, and the other one being Maddie, Liv's identical twin who remained behind. Another significant feature of the series are documentary-style cutaways where characters speak to the viewers to explain their opinions on various situations in each episode.
question: Who is the main character in Liv and Maddie who is described as the twin sister of an actress who has returned home from Hollywood?
short_answers: Maddie Rooney
Maddie
wikipage: Liv and Maddie

Long-form answers:
knowledge: content: Liv and Maddie, also known as Liv and Maddie: Cali Style for the fourth season, is an American comedy television series created by John D. Beck and Ron Hart that aired on Disney Channel from July 19, 2013 to March 24, 2017. 
wikipage: Liv and Maddie
content: Dove Olivia Cameron[1][2] (born Chloe Celeste Hosterman; January 15, 1996[3]) is an American actress and singer, who played a dual role as the eponymous characters in the Disney Channel comedy series Liv and Maddie, for which she won the Daytime Emmy Award for Outstanding Performer in Children's Programming.
wikipage: Dove Cameron
long_answer: The main characters in the Disney show Liv and Maddie are twin sisters Liv and Maddie Rooney. Liv Rooney is an actress who has just returned to her birthplace of Stevens Point, Wisconsin, after finishing a four-year stint in Hollywood, filming a popular television series. Her identical twin sister, Maddie, a tomboy with a talent for basketball, welcomes Liv back home with open arms. Both characters are played by American actress, Dove Cameron. 
knowledge: content: Liv and Maddie, also known as Liv and Maddie: Cali Style for the fourth season, is an American comedy television series created by John D. Beck and Ron Hart that aired on Disney Channel from July 19, 2013 to March 24, 2017.
wikipage: Liv and Maddie
long_answer: Liv and Maddie is an American comedy television series that aired on Disney Channel from July 19, 2013 to March 24, 2017. A main part of the show is that Dove Cameron plays the roles of both Liv Rooney, an actress who has returned home after starring on a popular television series, and Maddie Rooney, Liv's identical twin who stayed at home. Both Liv and Maddie are considered the main characters of the show.