Complex sentence: Kristofer Hivju (born December 7,1978) is a Norwegian film actor, producer and writer, best known for playing the role of Tormund Giantsbane in the HBO fantasy series "Game of Thrones".
Split into simpler sentences: Kristofer Hivju (born December 7,1978) is a Norwegian film actor, producer and writer. He is best known for playing the role of Tormund Giantsbane in the HBO fantasy series "Game of Thrones".