As a mythology expert, I can tell you that in Greek mythology, Hades is indeed considered immortal. He is the god of the dead and the king of the underworld, and as a member of the first generation of Olympian gods, his immortality is a central aspect of his character. Immortality in this context means that Hades, like the other gods, is not subject to death or aging and possesses eternal life.

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With the exception of Persephone, Hermes has more contact with Hades than any other Immortal. ... it's his responsibility to lead the dead from the land of light into the Underworld and deliver their souls safely to Hades.read more >>