The Wulls are one of the mountain clans of the North, making their home west of the northern mountains along the Bay of Ice. The chieftain of the clan is known as the Wull, although in Winterfell he is given the title Lord Wull. Theo Wull, known as Buckets, was among Lord Eddard’s companions to the Tower of Joy, where he died.
Big Bucket and the Wulls join Stannis Baratheon as he marches against the ironborn holding Deepwood Motte, and then against the Boltons as they occupy the ruins of Winterfell.