The first season of the American television series Supergirl, which is based on the DC Comics character Supergirl / Kara Zor-El, a costumed superheroine who is the cousin to Superman and one of the last surviving Kryptonians. Supergirl was ordered to series in May 2015, and later picked up for a full season in November 2015, with filming taking place primarily in Los Angeles. Melissa Benoist stars in the titular role, and is joined by principal cast members Mehcad Brooks, Chyler Leigh, Jeremy Jordan, David Harewood, and Calista Flockhart.