Supergirl/Season 4

Season Four of the superhero fantasy series Supergirl began airing on the CW Network on October 14th, 2018. Like previous seasons, season four saw a bit of a cast shake-up. Reprising their roles from previous seasons are Melissa Benoist as Kara Danvers, Mehcad Brooks as James Olsen, Chyler Leigh as Alex Danvers, Katie McGrath as Lena Luthor, and David Harewood as J'onn J'onzz. Adding to the main cast line-up this season is Jesse Rath as Brainy, Sam Witwer as Ben Lockwood, April Parker Jones as Colonel Lauren Haley, and Nicole Maines as Nia Nal. Season three actors who have departed from the series are Jeremy Jordan who played Winslow Schott, Odette Annable, who played Samantha Arias and Chris Wood, who portrayed the role of Mon-El.

Notes & Trivia
The mid-season finale was a three-part crossover with Arrow and The Flash called "Elseworlds". Legends of Tomorrow was not part of this crossover event.