Nick Tarabay (Star Trek Into Darkness) has landed a multi-episode role as Digger Harkness (aka Captain Boomerang), EW exclusively reports.
In the DC Comics, Boomerang/Harkness is a recurring foe of the Flash whose signature weapons are specialized boomerangs that he wields with incredible skill. On the page, he has also been associated with the Suicide Squad. On Arrow, Harkness will be a former A.R.G.U.S operative, highly skilled in martial arts and espionage, with a deadly thirst for vengeance against his former employers.
The character will be introduced in the seventh episode of the upcoming third season, and then continue in the eighth episode — which is when spin-off star The Flash crosses over into Starling City.