Heracles is a Berserker-class Servant in the Fate series, summoned by Illyasviel von Einzbern in the Fifth Holy Grail War. He possesses a superhuman physique with black hair and golden skin, resembling a divine sculpture. Despite the Mad Enhancement making him mostly silent and berserk, he retains rationality and loyalty to his Master. His core includes God Hand, granting twelve lives and resistance to most attacks. Deep down, he harbors hatred for the gods who tormented him, sympathizing with figures like Medusa and Jason. In Fate/Grand Order, he appears in Archer form as Alcides, driven by vengeance.