who is the main character in liv and matty
Main Characters. 1  Liv Rooney (Dove Cameron) is a former television star, who is the identical twin sister of Maddie. 2  Maddie Rooney (Dove Cameron) is the star of her school's basketball team, who is the identical twin sister of Liv. 3  Joey Rooney (Joey Bragg) is the younger brother of the Liv and Maddie and older brother of Parker.