Mercy Graves is a character originally created by Bruce Timm and Paul Dini and can be traced back over 20 years to the 1996 episode of Superman: The Animated Series called A Little Piece of Home. However, she would come to be known as Lex Luthor’s bodyguard and close associate. In the fourth season The CW’s Supergirl, Mercy Graves is played by Rhona Mitra. She remains Lex’s bodyguard but also has a mission of her own. Graves will attempt to spearhead the rising human-first movement, and she will step into the spotlight with both Lex and Lillian and prison. But who is […]