Jade Pettyjohn is an American actress. She is known for her roles as McKenna Brooks in An American Girl: McKenna Shoots for the Stars, as Summer on the Nickelodeon television series School of Rock, as Lexie Richardson on the Hulu drama television miniseries Little Fires Everywhere, and as Grace Sullivan on the ABC series Big Sky.

School of Rock is an American musical-comedy television series developed by Jim Armogida and Steve Armogida that premiered on Nickelodeon on March 12, 2016. It ran for three seasons, with its final episode airing on April 8, 2018. The series is based on the 2003 film of the same name and stars Breanna Yde, Ricardo Hurtado, Jade Pettyjohn, Lance Lim, Aidan Miner, Tony Cavalero, and Jama Williamson.