Stargirl Season 3 is officially scheduled to premiere on August 31st, North American time. This season, Stargirl Courtney Whiteman (Brec Bassinger) continues to lead the Justice Society of America to do good deeds while trying to make the villains who once stood on the opposite side integrate into their new life. However, the sudden return of "Starman" Sylvester Pemberton (Joel McHale), her new mentor, does not agree with her approach...