'Arrow' and 'The Flash' casts 'Spartacus' actor as Captain Boomerang 

\'Arrow\' casts \'Spartacus\' actor as Captain Boomerang

) has landed a multi-episode role as Digger Harkness (aka Captain Boomerang), EW can exclusively report.

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

, 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. In recent weeks, Arrow has also cast a

returns Wednesday, Oct. 8. Here’s Captain Boomerang from the comics:

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