Dafne Keen (“Deadpool” & “Wolverine”, “His Dark Materials”) and Saara Chaudry (“The Breadwinner”, “The Mysterious Benedict Society”) have officially signed on for recurring roles in the show’s third season, now filming in Vancouver. Keen will portray Artemis, the Greek goddess of the moon and the hunt, while Chaudry steps in as Zoë Nightshade, Artemis’ immortal lieutenant.