Deadwood alum Ian McShane is returning to HBO, joining Game of Thrones for Season 6.

Entertainment Weekly reported the casting news Saturday, but the magazine said it didn't have any details about the British actor's character or story line.

Show insiders told EW McShane will not spend much time on-screen, but will play an important role.

Production has started on Season 6 and the medieval fantasy drama is expected to return in the spring for a 10-episode run.