Amanda Joy Michalka is an American actress, musician and singer-songwriter who is best known as one half of the musical duo Aly & AJ, alongside her older sister Aly Michalka. She has appeared in films such as The Lovely Bones (2009), Secretariat (2010), Super 8 (2011), Grace Unplugged (2013), Weepah Way for Now (2015), and Support the Girls (2018). Michalka also starred in the ABC sitcom The Goldbergs (2013–2023) and its spin-off series Schooled (2019–2020). She is also known for voicing a lead role as Catra in the Netflix animated adventure series She-Ra and the Princesses of Power (2018–2020).

She-Ra and the Princesses of Power is an American animated television series developed for Netflix by ND Stevenson and produced by DreamWorks Animation Television. Like the 1985 Filmation series She-Ra: Princess of Power, of which it is a reboot, She-Ra and the Princesses of Power tells the tale of Adora, an adolescent who can transform into the heroine She-Ra and leads a group of other magical princesses in a rebellion against the evil Lord Hordak and his Horde.