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.
Hera
Hera is the daughter of the youngest Titan Cronus and his wife, and sister, Rhea. Cronus was fated to be overthrown by one of his children; to prevent this, he swallowed all of his newborn children whole until Rhea tricked him into swallowing a stone instead of her youngest child, Zeus. Zeus grew up in secret and when he grew up he tricked his father into regurgitating his siblings, including Hera. Zeus then led the revolt against the Titans, banished them, and divided the dominion over the world with his brothers Poseidon and Hades.