The name of the hero who captured the Golden Fleece is Jason. In Greek mythology, Jason is the leader of the Argonauts, a band of heroes who embarked on a perilous quest to retrieve the Fleece from the kingdom of Colchis. His journey is filled with challenges, including encounters with monsters and treacherous sorceresses like Medea, who ultimately assists him. The quest for the Golden Fleece symbolizes the heroic pursuit of glory and adventure, a central theme in many ancient myths, reflecting the ideals of bravery and leadership in Greek culture.