Mercy Graves (Arrowverse)

Mercy Graves is a major antagonist in the fourth season of the television series Supergirl, set within the Arrowverse. 
She was a terrorist, a former Cadmus agent and the former head of security at Luthor Corp. She was also the sister of Otis Graves and the ex-girlfriend/former friend of Lex Luthor.
She's based on the character of the same name from the DC Animated Universe
Category:Supervillains
Category:Supergirl characters
Category:Villains
Category:Humans
Category:Criminals
Category:DC characters
Category:Arrowverse characters
Category:Live-action characters
Category:TV show characters
Category:Sci-fi characters
Category:Science fantasy characters
Category:Dark fantasy characters