I suggest Cronus! Zeus had a pretty screwed up childhood. After...

I suggest Cronus!

Zeus had a pretty screwed up childhood. After hearing a prophecy that one of his children would overthrow him, his dad Cronus the Titan ate all of his children — Zeus only escaped because his mom fed Cronus a rock in baby clothes, which he assumed was his kid. It takes a special kind of a-hole to not just kill his own kids, but eat them (let alone be dumb enough to mistake a baby for a rock). But Cronus didn’t do things by half measures — he didn’t just overthrow his own dad, Uranus, but he castrated him, too. Then threw his balls into the sea...

Pretty much keeping in tune with the KAI/MPJ ethos I'd say!