Zeus
Where to start with this guy? Zeus was of course the guy in charge of the gods and the universe. Everyone, both mortal and immortal, called him father — both to represent his status and because in ancient Greece there was a 30% chance that Zeus actually sired you. Zeus cheated on his wife Hera constantly, and the sex didn’t need to be consensual — once he decided to fuck a woman, he was going to fuck her, and if he had to be a swan, a bull or a golden shower of light to do it, he didn’t care. Like all the gods, Zeus could hold a grudge, so if you pissed him off once, you were completely screwed, as Prometheus found out when he gave humanity fire. Zeus chained him to a rock and had an eagle eat Prometheus’ liver every day for eternity — just for being nice to us.