Auliʻi Cravalho as AJ Campos, Gabriela's twin and co-captain of Miller High School's track team.As Paige and AJ's relationship develops, Paige finds herself in a dilemma over whom she should be pursuing. Not knowing anything about track, her coach assigns her teammate AJ, Gabriella's sister, to train her. Paige is a high-school artist who joins her school's track team just to get closer to Gabriella, the girl she has a crush on.
