Arrow 4×06 “Lost Souls” – Felicity (Emily Bett Rickards) is frantic when she learns that Ray (guest star Brandon Routh) is alive and being held by Damien Darhk (guest star Neal McDonough). Felicity’s guilt over not finding Ray sooner causes tension between her and Oliver (Stephen Amell). Meanwhile, Sara (guest star Caity Lotz) joins Laurel (Katie Cassidy), Thea (Willa Holland) and the team on a rescue mission for Ray. However, the effects of the Lazarus Pit take over and threaten to jeopardize the entire operation. Donna Smoak (guest star Charlotte Ross) returns to Star City. Antonio Negret directed the episode written by Beth Schwartz & Emilio Ortega Aldrich (#406). Original airdate 11/11/2015.