Born on Sandrith III, Endis was a child abducted for the UNSC Spartan program. He served in the Human Covenant War as well as the First War of Blood. Endis served for a short time on Celsya, protecting an important O.N.I. intel base. But it was on this mission he was captured. He was brainwashed and forced to work for the Rogue Coyotes, the “bad guys” of the First War of Blood. As the Rogue Coyotes were slowly losing power, they needed something that could turn the tides. He was placed into the original Dark Devil squadron, where he would serve until the Second War of Blood, when he defected into the Red Eagle ranks.