Sumeria is an ancient culture, steeped in myth and ritual. Their pantheon isn't popular and unfamiliar so I have put together some quick information about the Gods and Goddess, with some back ground to go along with my Sumeria's Sons Series.
Abzu [ab='ocean' zu='to know' or 'deep'] God of fresh water, co-creator of the cosmos, consort to Tiamat. He threatens to destroy the world, upset with the chaos the younger Gods created, and he was planning to murder the younger deities. Enki confines defeats Abzu and places Abzu in eternal sleep in the waters of the Kur.
Ishkur—"Thunderer" God of Storms and Rain. Inspector of the cosmos. Consort to Shala, a goddess of grain. Father of the fire god Gibil.
Adapa—The first human man. Against Enki's wish the Gods decide to slay Kingu, and Enki finally consents to use Kingu's blood to make the first human, with whom Enki always later has a close relationship, the first of the seven sages, seven wise men or "Abgallu" (*Ab = water, *Gal = great, *Lu = Man), also known as Adapa.
Anat—A violent virgin Goddess of War. Patron Goddess to Lycan Warriors. Mother to the Goddess Inanna. She was depicted carrying a spear, axe, and shield, and wearing a tall crown surmounted by two ostrich feathers.
Ashur—Anshur—[An=heaven, Shar= axle or pivot.] Sky god. Consort to his sister Kishar who are the children of the twins Lahmu and Lahamu. Led the war against Tiamat. He has wings and is also called, Axis of the Heavens.
Enki—[EN.KI(G)]—"Lord of the Earth" "Lord of Freshwater" His image is a double-helix snake wrapping around a rod of lapis lazuli, or the Caduceus, very similar to the Rod of Asclepius. He is often shown with the horned crown of divinity dressed in the skin of a carp. Considered the master shaper of the world, God of wisdom and of all magic. God of Fertility and Creation. Creator of humanity and Enkidu.
Enkidu—[ EN.KI.DU "Enki's creation"] is a wild man created by the gods as Gilgamesh's equal to distract him from oppressing the people of Uruk. Civilized by the Priestess of Inanna, Shamhat. Enkidu embodies the wild or natural world, and though equal to Gilgamesh in strength and bearing, acts in some ways as an antithesis to the cultured, urban-bred warrior-king. Enkidu then becomes the king's constant companion and deeply beloved friend, accompanying him on adventures until he is stricken ill.
Enlil—[EN = Lord+ LIL = Loft, "Lord of the Open" or "Lord of the Wind"]—Titles accorded to him are "King of Lands", "King of Heaven and Earth", and "Father of the Gods". He is the God of Wind and Breath. When the Gods could not find Enki, Enlil offered to kill Tiamat if the Gods would make him their King. He wears the copper Tablets of Destiny which he took from Tiamat's son, Kingu. Without the tablets he loses his right to Kingship.
Ereshkigal—[EREŠ.KI.GAL, lit. "great lady under earth"] Goddess of Ikalla, the land of the dead. Wife of Nergal, She manages the destiny of those who were beyond the grave, in the Underworld, where she is Queen. It is said she had been stolen by Kur and taken to the underworld, where she was made Queen unwillingly. The twin sister of Enki. Name means "Lady of the Great Place," "Lady of the Great Earth," or "Lady of the Great Below." She sided with Tiamat in the war of the Igigi.
Gilgamesh—[Gilgameš] was the fifth king of Uruk, modern day Iraq (Early Dynastic II, first dynasty of Uruk), placing his reign ca. 2500 BC. Gilgamesh is a demigod of superhuman strength who built the city walls of Uruk to defend his people from external threats, and travelled to meet the sage Utnapishtim, who had survived the Great Deluge. He is usually described as two-thirds god and one third man. He was titled Shūtur eli sharrī ("Surpassing All Other Kings") and Sha naqba īmuru ("He who Saw the Deep").
Gugalanna—[gu "bull", gal "great", an "heaven",—a "of"]—The Great Bull of Heaven—also known as Taurus for the constellation of the zodiac. God of the seven waves of petulance. Associated with the solstice. He was the first husband of the Goddess Ereshkigal, the Goddess of the Realm of the Dead. He was sent to take retribution upon Gilgamesh for rejecting the sexual advances of the Goddess Inanna.
Inanna—[INA NA]—Goddess of Sexual Love, Sacred Prostitution and Warfare. Inanna's symbol is an eight-pointed star or a rosette. Patron Goddess of the city of Uruk. She is infamous for her treatment of her lovers. Her obsession with vengeance against Gilgamesh for his rejection, led to the deaths of Gugalanna and Enkidu. In Babylonian myth known as Ishtar. Depicted with clawed feet of a raptor and wings.
Ishara—(išḫara)—"treaty, binding promise" Goddess of the Oath. Ishara could inflict severe bodily penalties to oathbreakers, in particular ascites, a military oath. In this context, she came to be seen as a "goddess of medicine" whose pity was invoked in case of illness. There was even a verb, isharis—"to be afflicted by the illness of Ishara".
Keresaspa—the greatest warrior of all time. He is destined to kill the dragon Azhi-Dahaka with his mighty club. Only then will the curse of evil on the world be lifted.
Mithra—In addition to being the divinity of contracts, Mithra is also a judicial figure, an all-seeing protector of Truth, and the guardian of cattle, the harvest and of The Waters. He is the God who is the guardian of the Khvarnah or Divine Glory that alone bestows legitimacy on Kings. He can assume the forms of a Strong Wind, Wild Ram, Swordsman with a Golden Blade, or the shape of a boar. Guarded by the God Verethragna.
Ki—[KI "Earth"] Known more widely as Ninhursag. Was the earth and mother goddess, one of the seven great deities of Sumer. She is principally a fertility goddess. Temple hymn sources identify her as the 'true and great lady of heaven' and kings of Sumer were 'nourished by Ninhursag's milk'. She is typically depicted wearing a horned head-dress and tiered skirt, often with bow cases at her shoulders, and not infrequently carries a mace or baton surmounted by an omega motif or a derivation, sometimes accompanied by a lion cub on a leash. She is the tutelary deity to several Sumerian leaders. Her symbol, the omega Ω.
Ninsun—[nin-sun "lady wild cow"] is a goddess, best known as the mother of the legendary hero Gilgamesh. Also known as the "August cow", the "Wild Cow of the Enclosure", and "The Great Queen".
Shamash—[Šamaš "Sun"] God of the Sun and Lord of Justice. Emblem is the winged sun. Just as the sun disperses darkness, so Shamash brings wrong and injustice to light. Has the ability to expel demon possession. Gilgamesh receives dreams from Shamash, which Enkidu then interprets, and at their battle with Humbaba, it is Shamash's favor for Gilgamesh that enables them to defeat the monster. Lower gods that serve Shamash are Ketta = "Justice" and Mesharu = "Right".
Sin—aka Nanna—God of the Moon, the illuminator, often rode a winged bull. Symbols are the crescent moon, the bull, and a tripod.
Tiamat—A primordial Goddess of salt water, Consort and Queen to Abzu. She is identified with images of a sea serpent or multi-headed dragon. When she was slain by the God Enlil, the heavens and the earth are formed from her divided body. She is known as a chaos monster and gave birth to dragons, serpents, scorpion men and merpeople. The twelve signs of the zodiac are attributed to the children she created before she battled with Enlil.
Uttu—Known as the Spider, the weaver of the web of life. Goddess of Weaving and Clothing. The child of Enki and Ninkur. Keeper of the histories of the Gods.
Verethragna—[vərəθraγna]—is the principle companion and protector of Mithra. Called "Victorious Fire". He's an Archangel in constant battles with daemons and men. He has ten forms in which he can appear.
Zal the White Haired—He was considered cursed and was abandoned by his father and raised by Simurgh and later welcomed back by his father the King of Sistan.