Apollo (or Apollon) is the leader of a group of Greek mythology-themed cyborgs from the Mythos arc. He shows up across various adaptations, though the details shift depending on which version you're looking at.
His relationship to the other cyborgs varies—in some incarnations he's the younger brother of Helena (also called Artemis), while in others like the Mega-CD game, that connection isn't established at all. The different versions differ in other ways too, so there's no single definitive Apollo across all appearances.
Content compiled by AnimeList.moe from publicly available sources.
