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.
Prometheus the Fire-Bringer
Despite the paucity of direct evidence, Prometheus' foreshadowing of future events in the trilogy's first play suggests that the final play concerned itself with Prometheus' knowledge of a secret that could potentially lead to Zeus's downfall, and how the revelation of this secret leads to reconciliation between the Titan and Olympian. The secret is this: Thetis the Nereid, whom Zeus wants to take as a lover, is fated to bear a child greater than its father. Lying with her, then, would result in Zeus's being overthrown just as he had overthrown his own father, Cronus. During the course of the drama, Prometheus decides to warn Zeus about Thetis. Rather than lie with her, Zeus marries her off to the mortal Peleus, King of Aegina. The product of this union will indeed be a son greater than the father, namely Achilles, Greek hero of the Trojan War. Consequently, Zeus reconciles with Prometheus.