As you know there are many Greek gods... Here are many different gods and a description for each....
Chaos- In one ancient Greek myth of creation, the dark, silent abyss from which all things came into existence. According to the Theogony of Hesiod, Chaos generated solid mass of Earth, from which arose the starry, cloud-filled Heaven. Mother Earth and Father Heaven, personified respectively as Gaea and her offspring Uranus, were the parents of the Titans. In a later theory, Chaos is the formless manner from which the cosmos, or harmonious order, was created.
Gaea- She was the mother and wife of Father Heaven, Uranus. They were the parents of the first creatures, the Titan, the Cyclopes, and the Giants- the Hecatoncheires (Hundred-Headed ones). Uranus hated the monsters, and, even though they were his children, locked them in a secret place in the Earth. Gaea was enraged at this favoritism and persuaded their son Cronos to overthrow his father. He emasculated Uranus, and from his blood Gaea brought forth the Giants, and the three avenging goddesses the Erinyes. Her last and most terrifying offspring was Typhon, a 100- headed monster, who, although conquered by the god Zeus, was believed to spew forth the molten lava flows of Mount Etna.
Tartarus- The lowest region of the underworld. Hesiod claimed that a brazen anvil would take none days and nights to fall from heaven to earth, and nine days to fall from the earth to Tartarus. Tartarus rose out of Chaos and was the destination of wicked souls. Uranus banished his children the Cyclopes and the Hecatoncheires to Tartarus, as Zeus also did to the Titans. Other famous inhabitants of Tartarus include Sisyphus, Ixion, Tantalus, Salmoneus, Tityus, Ophion, and the daughters of Danaus.
Aprhodite-Is the goddess of love and beauty. One of her sons is cupid. He is also the god of love. She was loved by gods and mortals alike. Her tree is the mrtyle. The dove, swan, and sparrow were her birds.
Ares- Is the god of war. He was aggressive and unpopular with many gods and humans. He was not invincible even against mortals. Even though he was immortal, every time he was hurt he would run to Zeus and be healed. He was many worshipped in Thracia.
Athena- She is the goddess of wisdom, war, the arts, industry, justice and skill. Athena is one of the most important goddesses in Greek Mythology. She sprang full- grown and armoured from the forehead of Zeus and was his favorite child. She was fierce and brave in battle, but only fights to protect the state and home from outside the enimies. She was the goddess of the city, handicrafts, and agriculture. She invented the bridle, which permitted man to tame horses; the trumpet, the flute, the pot, the rake, the plow, the yoke, the ship, and the chariot.
Hephaestus- God of fire and metalwork. He was born lame and weak, and shortly after his birth, he was cast out of Olympus. In most legends he was soon honored again on Olympus and was married to Aphrodite, goddess of love, or to one of the three Graces.
Demeter- Goddess of corn and the harvest. Taught mankind the art of sowing and ploughing so they could end their nomadic exsistence. She was of a severe, a beauty scarcely relieved by her hair, which was as fair as ripened grain. Poseidon coveted her, but she refused herself to him. To escape him she fled to Arkadia where, assuming the shape of a mare, she mingled with the herds of King Oncus. Poseidon, however, succeeded in finding her, changed into a stallion and made her the mother of the horse Arion. When her daughter, Persephone, was abducted by Hades,
Persephone- Was the goddess of the Underworld and daughter of Demeter