Isarn is a fiery young hunter of twenty years, although he looks slightly older. He ostensibly lives in Worth Matravers, but travels often. He left his home village after a violent fight with his father, and now lives alone in a small hut on the edge of the village. He poaches regularly and is proud of his success at breaking the law. He is good looking, with strong features and a powerful demeanour. He has two hunting dogs, whom he beats regularly. Deep in his cups, he admitted to Jaime that he had been recently caught and beaten by the Constables men, and swore that he would avenge himself by killing every last one of them.