In what is a major story for Lost fans dying for any gossip on the show’s final season, this is a doozy.

Reuters is now confirming that Titus Welliver who played Jacob’s mysterious nemesis in last season’s finale will be back in the show’s final season.

Jacob’s nemesis (a.k.a. Man in Black), who last appeared in Season 5’s finale, is an inhabitant of the Island who had spent a century looking for ways to kill Jacob (Mark Pellegrino) until finally succeeding in 2007 by assuming the appearance of the dead John Locke (Terry O’Quinn) and persuading Benjamin Linus (Michael Emerson) to stab Jacob. The Man in Black’s name, identity and problem with Jacob were never revealed, leading to a flurry of speculation among “Lost” fans about who he is.

Credit: Reuters