Castor of Sparta was a famed son of Zeus and athlete, noted for accompanying his brother Pollux. Castor and his twin brother Pollux were born to Zeus and a mortal mother, Leda. They were raised in a small village outside of Sparta. Castor accompanied his brother Pollux to many sporting events across Greece, including games in Amphipolis, an early form of the Olympic Games, and the Corinthian Games. It was in Corinth that Castor first fully met Hercules, who joined him in Pollux in the Gymkhana relay.