Arrowverse Wiki
Arrowverse Wiki

"Never give in. Never, in nothing, great or small, large or petty, except in considerations of honor and good sense. Never yield to force, or the apparently overwhelming might of the enemy that confronts you. Never. Never, ever, give in."
Ben Lockwood[src]

The fourth season of Supergirl​​​​​ premiered on October 14, 2018 on The CW and concluded on May 10, 2019. The season consisted of 22 episodes.


Main cast

Recurring cast



  • This season airs on Sundays at 8/7c, as opposed to the past three seasons that aired on Mondays at 8/7c.
  • Manchester Black was originally going to be the main antagonist of this season.[1]
  • Jeremy Jordan was supposed to appear as a recurring role this season, but was unable to.[2] He would return in the fifth season.
  • This is the final season with more than 20 episodes since the COVID-19 pandemic halted Season 5's filming and the final season will have only 20 episodes.
  • Season 4 marks Jesse Rath and Nicole Maines' first in addition to being the only season for Sam Witwer and April Parker Jones whose credited from "Ahimsa" onwards. It is also the first season to be fully run by Jessica Queller and Robert Rovner.


Title cards

Promotional images