Zag is a Kig-Yar that served in the Human-Covenant War, supported the Covenant Loyalists, and is currently the Head of the Manufacturing Corporation CovTech. Zag himself was born on the Kig-Yar home-world of Eayn, and from his early life he was always Power-Hungry. His thirst for power, among other things, lead him to eventually be a part of the Covenant Empire's military. He did not have a major Military Role until the Battle of Reach, however.