Andi Mack (television) Series on Disney Channel beginning April 7, 2017 and ending July 24, 2019. On the eve of her 13th birthday, Andi learns that her older sister, Bex, is actually her mother. This revelation puts Andi on an unfamiliar path of self-discovery that she navigates with the help of her loving, albeit complicated, family; her two best friends, Cyrus and Buffy; and her middle school crush, Jonah Beck. Along the way, Andi learns that sometimes the unexpected is what makes life great. Created and executive produced by Terri Minsky. Stars Peyton Elizabeth Lee (Andi), Lilan Bowden (Bex), Lauren Tom (Celia Mack), Joshua Rush (Cyrus Goodman), Asher Angel (Jonah), Sofia Wylie (Buffy Driscoll). From Horizon Productions.