The hero who slayed Medusa according to Greek myths is Perseus. Tasked with the seemingly impossible mission, he embarked on a quest to defeat Medusa, a Gorgon with snakes for hair whose gaze could turn men to stone. With the aid of gifts from the gods, including a reflective shield, winged sandals, and a sword, Perseus successfully beheaded Medusa, showcasing the triumph of heroism and cunning. His story emphasizes themes of courage, resourcefulness, and the need to confront one's fears. The narrative also explores the consequences of beauty and the duality between mortals and the divine, demonstrating the complexity of heroism in mythology.