It appears that the cursed character will finally have his live-action debut in Season 2 of the hit fantasy series. According to Redanian Intelligence, the show has already cast Game of Thrones actor Kristofer Hivju as Nivellen. The report cites a casting breakdown obtained by the website, which lists Hivju as the actor playing "Nigel," which, judging by the accompanying description, is in fact Nivellen.
Hivju is best known for his portrayal of the wildling, Tormund Giantsbane, in HBO's epic fantasy series, Game of Thrones. He was introduced in Season 3 and gradually became a prominent character toward the end of the series.