DC's Stargirl, or simply Stargirl, is an American superhero television series created by Geoff Johns that premiered on streaming service DC Universe. It is based on the DC Comics superhero Courtney Whitmore (played by Brec Bassinger), created by Johns and Lee Moder. The series follows high school student Courtney Whitmore who discovers the cosmic staff and becomes the inspiration for a new generation of superheroes who become the Justice Society of America.
DC Universe ordered the series in July 2018. Bassinger was cast that September, with additional castings for her family members, the Justice Society of America, and the Injustice Society of America through February 2019. Filming for the series began in March 2019 in the Atlanta metropolitan area in Georgia. Stargirl premiered its first season on DC Universe on May 18, 2020, which consists of 13 episodes, and also aired the following day on the broadcast network The CW. In July 2020, the series was renewed for a second season, subtitled Summer School, which premiered on August 10, 2021, exclusively on The CW. In May 2021, the series was renewed for a third season, subtitled Frenemies, scheduled to premiere on August 31, 2022.Ahead of the series premiere, characters from the series were featured in a cameo during the Arrowverse crossover "Crisis on Infinite Earths", establishing Stargirl as existing on a parallel Earth to the Arrowverse series. The show has received positive reviews from critics.