This is king Gilgamesh. H e once was the ruler of a town named Uruk But a lot of people that lived in Uruk didn't want to live there and prayed to the gods for help.
That is Enkidu he is half animal half human, he was sent from the gods to challenge Gilgamesh. Later on they find out that they have equal power and can't beat each other. So they call it draw and become best friends.
This is Ishtar she is a goddess. Because Gilgamesh was created "Perfect" Even Ishtar was attracted to Gilgamesh and this was kind of the first test to the almost changed Gilgamesh.
Gilgamesh rejected Ishtar's offer of love. She was mad and sent the bull of heaven. Gilgamesh and Enkidu teamed up and defeated the bull. Ishtar places a curse on Enkidu, Gilgamesh now fears death because of that.
Enkidu dies from he curse it hurts Gilgamesh but it encourages him to become better and change.
Fter Enriku's death Gilgamesh is trying to change by going on his journey to find immortality. He is determined to live a "forever life"