Both Aidan Gillen (Littlefinger) and Michael McElhatton (Roose Bolton) will be in King Arthur: Legend of the Sword. Eline Powell will also be in it, she played 'Sansa' in the play that Arya was watching in Bravos.
Hello! My name is Jenna and I am new to the forum I'm a huge fan of both the show and the books. I don't really know what more to say so I'm just going to leave it at that lol