Helios (God of War)

Helios took part in the Great War along with the rest of the Olympians, fighting alongside Hermes. After the end of the war, Helios became the god of the sun.

Chains of Olympus

Helios was kidnapped by the Titan, Atlas, under the orders of Persephone, because of her feelings of betrayal due to the fact that she was forced to stay with Hades for six months of each year by the gods. With Helios gone, the god of dreams, Morpheus, was free to cast the gods into slumber and take control of the mortal realm. Atlas took Helios to the Underworld where he sought to use the sun god's power to destroy the Pillar of the World, thus wiping out all of existence. However Kratos came to the realm of the dead to rescue Helios and he defeated Persephone (with help from a beam of light from the sun god) and chained up Atlas, forcing him to take the pillar's place. After Kratos lost consciousness due to the tiring battle he had just undergone, Helios and Athena appeared to take the Sun Shield and the Gauntlet of Zeus. The sun god was very grateful for Kratos saving him and showed pity for all that he had been through. Helios suggested helping him more but Athena disagreed, stating "He'll live. They must."