The Greek hero known for his strength and who later performed his Twelve Labors is Heracles, also known as Hercules in Roman mythology. Heracles is renowned for his extraordinary strength and heroic feats, which include defeating mythical beasts and completing seemingly impossible tasks as punishment. His Twelve Labors, assigned by King Eurystheus, include challenges like slaying the Nemean Lion and capturing the Golden Hind. Heracles is often seen as a symbol of perseverance and redemption, embodying the ideals of heroism in ancient Greek culture.