<P> 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, but with a particular talent for basketball, welcomes Liv back home with open arms . The twins have two younger brothers: Joey, an awkward and a smart teenager who likes cat shirts, and Parker, a clever and precocious tween with a slightly mischievous personality . 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 . </P> <Ul> <Li> Dove Cameron as Liv and Maddie Rooney </Li> <Li> Joey Bragg as Joey Rooney </Li> <Li> Tenzing Norgay Trainor as Parker Rooney </Li> <Li> Kali Rocha as Karen Rooney </Li> <Li> Benjamin King as Pete Rooney (seasons 1--3) </Li> <Li> Lauren Lindsey Donzis as Ruby (season 4) </Li> </Ul> <Li> Dove Cameron as Liv and Maddie Rooney </Li> <Li> Joey Bragg as Joey Rooney </Li>

Who plays the twins on liv and maddie