Zeus, King of Gods.
Ruler of the Olympic mountain, Lord of the sky, God of the rain and accumulator of clouds, he waved the terrible lightning.
The father of all gods and mortals. Husband of Hera.
Hera, Queen of Gods.
Goddess of marriage and protector of married women. She was very jealous and often she chased Zeus' lovers and children (I think she deserved lovers too). She never forgot an unfaithfulness and she was known because of her vengeful nature. ​​​​​​​
Poseidon, God of the sea.
He was Anfitrite's husband, one of the nereids, and they had a chil: Triton. Nevertheless, he had many other lovers.
Poseidon and gorgon Medusa had a child: Pegasus, the famous flying hourse.
Demeter, Goddess of agriculture.
She belonged to the first generation of Olympic Gods and she had a daughter with Zeus: Persephone.
Demeter had a large scope of abilities. Besides being the goddess of the harvest, she also controlled the seasons,
and because of that she was capable of destroying all life on earth. 
Hades, God of the dead.
Even he was a ferocious God, he wasn't malignant. He was quite passive and often was entrusted to keep the balance.
The Underworld was called Hades. It was divided in different regions: some of them are the Elysium, where the heroes went in when they died (similar to the Heaven) and Tartarus, the deepest region, where the titans were shut in (alike the Hell).

Hestia, Goddess of household and the sacred fire.
Sister of Zeus, Poseidon, Hades, Hera and Demeter, Hestia was really calm and was the only one who never got involved in a fight. 
It is said that Hestia gave up her seat in favour of newcomer Dionysus to tend to the sacred fire on Mt. Olympus.
Because of this, Hestia doesn't figure in many myths and she didn't roam or have any adventures.
OLYMPIAN GODS
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