Matteo Pérez

 was an Exxelite Human mercenary who was eventually hired by the Chosen One, Joseph Everest VI, for a very important mission.

Under Joseph's orders, he went back in time and became Peter Sassenov, the Rodian Purist scientist who would become the first Emperor of the Rodian Purist Empire and eventually the Galactic Purist Empire, known as Peter the Benevolent, in order to ensure Melanie's path to becoming an Olympian, Dominic's rise and fall, and even the birth of Joseph.