In Greek mythology, Achilles was a demigod and a hero of the Trojan War,the greatest of all the Greek warriors with superhuman strength,and the central character of Homer's Iliad.He was the son of the Nereid Thetis and Peleus,king of Phthia.He's vengeful, proud and petty also fearless,red-blooded and defiant.He defiant even of the gods, whom he doesn't believe worthy of his reverence.However, Achilles begins to exhibit qualities that are considered heroic.