Game of Thrones season 6 has cast another character and it's been revealed that it will be famed actor Max Von Sydow. Mr. Sydow has been in so many movies and films that's it is impossible to list them all, but he was the priest in the Exorcist and will also be in Stars Wars Episode VII the Force Awakens.
As first reported by EW, who also first reported Ian Mcshane to join the cast as well, Sydow will play the Three-Eyed Rave, the mysterious mystical tutor of Bran Stark last seen briefly in the Season 4 finale (originally portrayed by Struan Rodger).
It's unknown exactly how much screen time they will see, but both Von Sydow and McShane are supposedly going to have average involvements in this season's story.
