Helios (known in Roman as Sol) is the Titan of the Sun that he embodies. He never physically appeared in the series but the Colossus of Rhodes appeared in Hercules and the Hero of Athens. He was the former Sun God but later passed on and left his duty to Apollo. And Son of the Titan Hyperion and Theia and brother of Selene goddess of the Moon and Eos goddess of the Dawn and father of Circe and Aeetes and Pasiphae
Although his name is never mentioned, it is possible that this god, seen briefly in the film on Mount Olympus, is a caricature of Helios. He has sun-shaped hair, which makes him easy to identify himself.