Jade Elizabeth Pettyjohn, born November 8, 2000, in Los Angeles, California, is an American actress with a career spanning over a decade in both comedy and drama.[1][3][4][7] She began acting at age eight, debuting in a 2008 episode of *The Mentalist*, encouraged by her parents, and soon appeared in episodes of *United States of Tara*, *Revolution*, and *Grimm* alongside Bree Turner.[3][7] Pettyjohn gained early recognition as **McKenna Brooks** in the 2012 film *An American Girl: McKenna Shoots for the Stars*, her first lead role, followed by her feature debut in the 2014 movie *Dakota's Summer*.[1][2][3][7] She rose to prominence on television as **Summer Hathaway** in the Nickelodeon series *School of Rock* (2015–2018), showcasing her skills as an actress and singer.[1][5][7] Notable dramatic turns include **Lexie Richardson** in Hulu's 2020 miniseries *Little Fires Everywhere* and **Grace Sullivan** in ABC's *Big Sky* (2020–2021), where she appeared in multiple Season 1 episodes.[1][2][6][7] Her versatility across genres has earned her recognition as the 11,781st most popular actor globally and 5,421st among U.S. actors, per historical popularity indices, though rankings have slightly declined since 2019.[1] As of 2025, at age 25, Pettyjohn remains active, with her official bio highlighting ongoing work, though no major recent projects are detailed in available records.[4] She has also featured in Nickelodeon's *Ho Ho Holiday Special* (2015).[3] (298 words)