Skinwalker, shown in the game as the Skinner, is Anna's closest ally and a hunter who works alongside the Resistance. He passes on what he knows about living off the wild, but only to players who earn it by taking on his hunts and endurance trials. He grew up in House Camp, vanished as a boy and came back long afterwards a different man who refuses to say where he went. He stands at Hunter's Glade, beside a fire basket on the walkway of the tower.
He sells hunting gear. Talk to him and choose the trade line to open the BARGAIN screen, where the Simple Bow, Trap Bow, Flint Shiv, Wooden Arrow, Rabbit Trap and Under Snow Trap turn up. His stock changes between visits. As his quests go on he hands over Bucks, the Bear, Fox and Wolf Head Hats, Makeshift Heaters, Skinwalker's Key and recipes for hide rugs and head trophies.
His side quests go by animal: four hares for "Wabbit" Season, seven wolves for Hour of the Wolf, three foxes for What Does The Fox Say, and a muskox for The Muskox. During High Frequency he explains the broken radio, and in The Way Home his box on the platform gives you a Utility Backpack and the Tailoring Bench recipe.