Who were some of the greeks gods and goddesses?

Well the primordial gods are as listed
Aether God of light
Aphrodite Goddess of beauty.
Chaos God of the nothingness from where everything came.
Kronos(Cronus) Titan of time and agriculture or harvest and father of six of the Olympian gods.
Erebus God of darkness.
Gaia Goddess of the Earth (Mother Earth), mother of Kronos, grandmother of Zeus, Hades, Poseidon, etc.
Hemera Goddess of daylight and the sun.
Zephyr God of the west wind.
Nyx Goddess of night.
Uranus God of the heavens (Father Sky) and father of the Titans

the Olympians were as listed.

Aphrodite Goddess of love and beauty, wife of Hephaestus. Ares is her lover. Eros is her son.

Apollo God of the Sun, music, archery and prophecy. He is Artemis's twin brother, and Son to Zeus.

Ares God of war, murder and bloodshed. Brother to Athena, and is the son of Zeus.

Artemis Goddess of the hunt and the moon. Apollo is her twin brother. Artemis is a virgin goddess and is also protector of maidens.

Athena Goddess of wisdom, warfare and reason. Sister of Ares, and is the daughter of Zeus.
Demeter Goddess of fertility, grain and harvest. Demeter is a sister of Zeus.

Dionysus God of wine, parties/festivals, madness and merriment, he is a son of Zeus.

Hades God of the underworld. Brother of Poseidon and Zeus.
Hephaestus God of fire and the forge. Ugly son of Hera and Zeus is his father in some accounts. Married to Aphrodite, but she doesn't love him because he is deformed and as a result is cheating on him with Ares.

Hera Goddess of marriage, women and childbirth. Zeus' wife.

Hermes God of flight, thieves, commerce, and travellers. Messenger of the gods.

Hestia Goddess of the hearth, fire and home.
Poseidon God of the sea. His sons are Persus, and Triton. His weapon is a trident.

Zeus The king of the gods after killing his father, the ruler of Mount Olympus and the god of the sky, thunder and lightning. He is married to Hera. Zeus is the father of Hermes, Hephaestus, Dionysus, Athena, and Ares.