Check out a first look at Matt Ryan reprising as Constantine from theÂ fifth episode of Season 4's Arrow titled "Haunted."
The pic comes from the latest issue of TV Guide in which Ryan reveals there is history between the two.
"There is a little history between [John and Oliver] â€¦ I would not say that they are friends. I would say they are acquaintances who have a past. John owes him," Ryan offered.
The episode is due to air November 4th.
MATT RYAN REPRISES HIS ROLE AS JOHN CONSTANTINE ON ARROW â€” 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, Â John Constantine (guest star Matt Ryan). Â John Badham directed the episode written by Brian Ford Sullivan & Oscar Balderrama.Â