Rhona Mitra (The Last Ship, The Strain) has been cast to play Mercy Graves, Lex Luthor’s longtime bodyguard on the DC series Supergirl on the CW. Robert Baker has also been cast on the show to portray Mercy’s brother, Otis Graves
A bit of back story on the iconic DC character, Mercy Graves (Mitra) is an ex-CADMUS agent who has always believed in human exceptionalism. But with both Lex and Lillian in prison, Mercy is stepping out of the Luthor shadow and running her own show. With her biting wit and lethal brawn, Mercy steadily becomes a key figure in National City’s growing “human-first” movement. This will play into the angle also being used by Agent Liberty who will be played by Sam Witwer.
Otis Graves is Mercy’s defacto right hand man. He is seemingly not that bright but he makes up for with his savant-like abilities to assassinate aliens.
Supergirl returns on the CW, this October.