Ki

Ki is a member of a race of aliens(Earthlings call them Anunnaki) who are immortals thanks to their stolen advanced cloning technology. She's the daughter of Marduk; however she was a dissident who betrayed the then current Anunnaki Government to collaborate with the Humans to stop his reign of terror over the Milky Way galaxy. A large motivator in her dissidence towards her then government was the execution of her brother Anu.