<P> In "Sorta Sisters - a-Rooney", Pete is no longer a series regular and is said to be overseeing the rebuilding of the Rooney home while continuing his job in Beloit . </P> <P> Ruby (Lauren Lindsey Donzis) is the cousin of the Rooney children and the daughter of Dena who resides in California . She is younger than Parker and plans to follow in Liv's footsteps by becoming an actress herself . She joins the series as a series regular in the fourth season . </P> <P> Digbert "Diggie" Smalls (Ryan McCartan) is Maddie's main love interest . He is the captain of the boys' basketball team of Ridgewood High and is perceived as confident and strong . Diggie affectionately calls Maddie simply as "Rooney", though in "Twin - a-Rooney", he calls her "Rooney classic" to distinguish her from Liv . In "Move - a-Rooney", Diggie finally expresses his feelings toward Maddie after she tells him they are moving . Diggie is also seen as a mentor for Joey when it comes to anything related to being "cool". Diggie was also the manager of the local frozen yogurt shop . In the second season, he left Wisconsin to go to the nation of "Tundrabania" after Maddie injured her knee . In "Gift - a-Rooney", he makes his first physical appearance since the first season for his and Maddie's "meet - a-versary", courtesy of Liv . In "Flugelball - a-Rooney", he returns from Tundrabania only to break up with Maddie after he thinks she does not support his decision to go to Australia . It is revealed that he still has feelings for Maddie in "Video - a-Rooney". </P> <P> In "Frame - a-Rooney", it is revealed that Diggie is Artie's older brother when Diggie is annoyed with Artie's habits . </P>

What is diggy's real name from liv and maddie