The White Walker, or White Walker commander, is a character and antagonist in A Song of Ice and Fire and Game of Thrones. He is a member of the White Walker race, the Others. A group of mystical and violent ice creatures that inhabited the lands of Westeros before the first men. He and his kind are extremely hostile towards humans and intend on taking back the Seven Kingdoms and wiping humanity from exsistance. The Walker commander is part of the army of the Others that marches on the Fist of the First Men. He is portrayed by actor Ross Mullan.