For other uses of the term Achilles, see Achilles (disambiguation)
The son of a mortal and a sea nymph, Achilles has shared his super-powers with such people as Zha-Vam, Superman, and Captain Marvel of Earth-S. As expressed in Zha-Vam, his invulnerabilty is formidable, however, the weakness of his heel is exploited when a protective green kryptonite sock is lost in a tussle after Superman summons the titan Atlas (Act No. 351, Jun 1967: "Zha-Vam the Invincible!"; Act No. 352, Jul 1967: "The Victory of Zha-Vam!"; Act No. 353, Aug 1967: "The Battle of the Gods!").