Cú Chulainn
One of Celtic and Ulster mythology's greatest heroes. He's best known by his epithet "Hound of Culann"—a name he earned after killing the guard dog of a craftsman named Culann and offering himself as replacement. Before that, he went by his birth name, though most stories just call him by the hound title anyway.
His backstory ties directly to the sun god Lugh, whose blood runs through him, earning him the designation "Child of Light." This divine heritage explains a lot about why he's considered peerless among Celtic heroes.
He exists in a weird position where he's technically the same person as the Lancer-class Servant summoned under his True Name—same guy, same legend. Except not quite. He tends to manifest younger in mind and body than "that version," which creates some interesting tension depending on which iteration shows up. Fans often note this duality makes him one of the more complex figures when it comes to how mythology plays out across different summoning contexts.
Content compiled by AnimeList.moe from publicly available sources.
