Season 4 (Supergirl)

The fourth season of premiered on October 14, 2018, on The CW and concluded on May 19, 2019. The season consisted of 22 total episodes during its run.

Main Cast

 * Melissa Benoist as Supergirl/Kara Danvers (Kara Zor-El) / Red Daughter/Linda Lee
 * Mehcad Brooks as Guardian (James "Jimmy" Olsen) / Jimmy
 * Chyler Leigh as Alex Danvers & Alex Danvers
 * Katie McGrath as Lena Luthor
 * Jesse Rath as Brainiac 5/Barney Fife (Querl Dox)
 * Sam Witwer as Agent Liberty (Ben Lockwood)
 * Nicole Maines as Dreamer (Nia Nal)
 * April Parker Jones as Lauren Haley
 * David Harewood as Martian Manhunter (J'onn J'onzz)

Soundtrack
On June 4, 2021, an album consisting of incidental music from the season was released digitally on Spotify and Amazon Music.