The "Haunted" episode of Arrow will feature Matt Ryan reprising his role as John Constantine and now you can see a clip with him warning Oliver Queen (Stephen Amell) about Season 4 baddie Damien Darhk (Neal McDonough).
"You watch yourself around that one mate," Constantine recommends to Ollie in this latest sneak peek. "He makes what you saw in the other realm look like a bloody gnat." He offered some helpful advice: "Leave town ... while you still can."
Check out the clip in the video below.
When things take a turn for the worse with Sara (guest star Caity Lotz), Oliver (Stephen Amell) calls in a favor from an old friend who deals in the mystical, John Constantine (guest star Matt Ryan).
John Badham directed the episode written by Brian Ford Sullivan and Oscar Balderrama (#404)
"Haunted" episode of Arrow will air on Wednesday, November 4 at 8 p.m. ET/PT on The CW.