Season 3 (Supergirl)

The third season of premiered on October 9, 2017, on The CW and concluded on June 18, 2018. The season consisted of 23 total episodes during its run.

Main Cast

 * Melissa Benoist as Supergirl/Kara Danvers (Kara Zor-El) & Overgirl (Kara)
 * Mehcad Brooks as Guardian (James "Jimmy" Olsen) & Guardian
 * Chyler Leigh as Alex Danvers
 * Jeremy Jordan as Winn Schott
 * Katie McGrath as Lena Luthor
 * Odette Annabelle as Samantha Arias/Reign
 * Chris Wood as Mon-El
 * David Harewood as Martian Manhunter (J'onn J'onzz)

Soundtrack
On March 15, 2019, an album consisting of incidental music from the season was released digitally on Spotify and Amazon Music.