Tyler Alvarez as Dillon, Paige's best friend who's dating Stacey.Isabella Ferreira as Gabriela Campos, Paige's crush since childhood, AJ's twin sister, and co-captain of Miller High School's track team.
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 who she should be pursuing. Not knowing anything about track, her coach assigns her teammate AJ to train her.
Paige is a high-school artist who joins her school's track team just to get closer to the girl she has a crush on.
