Welcome to our Nikolaj Coster-Waldau Page. Nikolaj Coster-Waldau is a 43 year old Danish actor, producer and screenwriter. He has also appeared in things other than Game of Thrones and to name a few we have; Mama, Oblivion and Headhunters. Back to Game of Thrones and Nikolaj plays Jamie Lannister who we as audience members find him to be an anti-hero, we’re not sure whether he is doing the right thing but in his mind he is doing what is right. This unfortunately does mean falling in love with his sister Cersei to have a child Joffrey.