Rhona Mitra Joins Supergirl Season 4 As Mercy Graves

Supergirl continues to beef up its cast of characters for Season 4, with the latest addition being Rhona Mitra as Mercy Graves.

Mercy Graves may be familiar to comic book fans as Lex Luthor’s loyal bodyguard.  While Lex himself isn’t on the show, “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” according to the official description.

Rhona Mitra is no stranger to action.  I particularly enjoyed her work on Strike Back on Cinemax and she seems like a great fit for the character.

Mercy Graves is someone I primarily know from watching Superman: The Animated Series.