Amanda Joy "AJ" Michalka (born April 10, 1991 in Torrance, California) is an American actor, singer-songwriter, and musician.
Along with her older sister Alyson Michalka, they comprise of the musical duo Aly & A.J.. She also has a successful side career as an actor, playing Lainey Lewis in The Goldbergs and its spin-off, Schooled, Catra in She-Ra and the Princesses of Power, and Stevonnie in Steven Universe.
- Hellcats (2011) as Dierdre Perkins
- The Goldbergs (2013-present) as Lainey Lewis
- Schooled (2019-present) as Lainey Lewis
- Steven Universe (2015-2019) as Stevonnie (voice)
- She-Ra and the Princesses of Power (2018-2020) as Catra (voice)