A demigod son of Apollo and the mortal singer Naomi Solace. Will is the head counsellor of Cabin Seven at Camp Half-Blood, a skilled healer who inherited his father's medicinal abilities. He has shaggy blond hair, blue eyes, and a calm, reassuring demeanour that makes him an effective leader. Will is in a relationship with Nico di Angelo and serves as a stabilising presence for both his boyfriend and his mortal father during Apollo's trials.