The name of the legendary ruler of the underworld in Greek mythology is Hades. Often associated with death and the afterlife, Hades governed the realm of the deceased along with his wife, Persephone. Though often considered a dark figure, Hades played a critical role in maintaining the balance of life and death within the mythology. His portrayal highlights the inevitable nature of mortality, as well as the eventual return of souls to the earth during certain seasonal cycles. Hades’ influence extends beyond mere darkness, reflecting the complexity of the afterlife in Greek beliefs.