Not the Laurel Lance killed off in Season 4, mind you, but the villainous Earth-2 “Black Siren” introduced on The Flash, who resurfaced on Arrow in Season 5.
As if Arrow wasn’t already making big plans for the Season 5 finale, Season 6 is starting to shape up.
Harkavy’s addition in particular comes as relief, given that Season 6 already confirmed Katie Cassidy would return to her series regular role as Laurel Lance.
Arrow Season 6 remains something of a mystery, given the series will finally graduate beyond its five-year flashback format, but stay tuned for the final episodes of Season 5 in the meantime.