Zeus
Zeus played a dominant role, presiding over the Greek Olympian pantheon. He fathered many of the heroes and was featured in many of their local cults. Though the Homeric "cloud collector" was the god of the sky and thunder like his Near-Eastern counterparts, he was also the supreme cultural artifact; in some senses, he was the embodiment of Greek religious beliefs and the archetypal Greek deity.
Aeschylus
In the trilogy's conclusion, "Prometheus the Fire-Bringer", it appears that the Titan finally warns Zeus not to sleep with the sea nymph Thetis, for she is fated to give birth to a son greater than the father. Not wishing to be overthrown, Zeus marries Thetis off to the mortal Peleus; the product of that union is Achilles, Greek hero of the Trojan War. After reconciling with Prometheus, Zeus probably inaugurates a festival in his honor at Athens.