Supergirl will be showing us a little Mercy next season: Rhona Mitra (The Last Ship) is joining the Season 4 cast of The CW’s superhero drama in a season-long recurring role as villainess Mercy ...

Mitra has appeared in a variety of TV shows, including The Last Ship, Strike Back, Nip/Tuck, and Boston Legal. More recently, she had a recurring role in The CW’s Supergirl as Mercy Graces.

Rhona Mitra has been cast for the upcoming fourth season of The CW‘s hit Supergirl in the villainous role of Mercy Graves, Lex Luthor’s longtime bodyguard, and she is joined by Robert Baker ...