Williams appears as Arya Stark in the sixth episode of the third season of Game of Thrones, The Climb. Carice van Houten plays Melisandre, the Red Priestess of the Lord of Light. Joe Dempsie plays Gendry, Arya’s companion. Melisandre arrives at the hideout of the rebel group Brothership Without Banners, and tells the group that Gendry is required by the Lord of Light. In return, she provides the group with gold for their mission to disrupt the Lannister and Stark armies. Arya accuses Melisandre of being a witch. Melisandre responds by saying that she has had a vision that Arya will kill many people in the future, and that they will meet again.