Natam is a member of Bridge Four. Originally, he wouldn't commit to the changes proposed by Kaladin for their bridge crew, but was convinced of their validity over time.
As a member of Bridge Four, Natam becomes a member of the King's Guard. His duties include guarding Dalinar and Navani. He also becomes the guard who notifies Kaladin and the rest of the King's Guard of the attack on King Elhokar by an assassin.