New to the cast for the fourth season is Sam Witwer as Agent Liberty, Rhona Mitra as Mercy Graves, and Bruce Boxleitner as Vice President Baker.
The CW has released the first promo for Supergirl episode 4.18, titled “Crime and Punishment,” highlighting the girl of steel in the middle of a man hunt as the government and Agent Liberty try to stop her from being a hero.
New episodes of Supergirl premiere Sunday at 8/7c on The CW.