Viltrumite (Earth-79)

"We have always been destined to rule over other lesser beings. And trust me, when I say lesser, I mean everything."

- Thragg Viltrumites are a race of militaristic humanoid aliens that rule over an interstellar empire based on Viltrum. Viltrumites are known to be one of the most terrifying alien races in the universe, with their infamous tyrannical nature complete with a god-complex trait. And with the latter trait, the Viltrumites soon developed a galactic empire stretching across hundreds if not thousands of planets. They subjugate weaker races by "bullying" them with their phenomenal strength, with one Viltrumite even being able to destroy an entire civilization. Viltrumites are known to have lived long lives, with some even surviving to the 31st Century after living for well over three centuries.

Rise to Power
Surprisingly, this menacing race actually originated from the peaceful race of Kryptonians. The seeds of those who would become proto-Viltrumites came from a band of Kryptonian explorers that set out to found a colony that is part of the Golden Age of Krypton. Among all the Kryptonian explorers, however, this band ventured too far and lost contact with the main ones on Krypton. Forced into cryostasis, the Kryptonians eventually landed on Viltrum, where they woke up and developed a colony based on the orders stored in their ships' digital storage. Unknowingly, by the time they developed the colony, Krypton and all its other "colonies" were already lost to the Phantom Zone. As time passed, these Kryptonians soon "evolved" to a greater state after getting prolonged exposure to Viltrum's yellow sun. After milleniums, the Viltrumites gained godly physical powers, but lost many of the abilities a regular Krypton would have had under a yellow sun, such as heat vision, super breathe, microscopic vision, and others. Viltrum's harsh surface and condition also enforced the Viltrumites to be tougher, and indirectly caused their evolution and adaptation towards the dangerous terrain of the planet.

Soon, the Viltrumites would create an identity of their own and set out to expand their "colony". But attempts to expand their colony quickly turned into an attempt to found a strong empire, quelling the weak and subjugating lesser beings. Year after year, they took other planets into their own rule. From planets within the same star system as their planet, to an entire galaxy.

A Changing Way
In one day, the Viltrumite Empire would usually send three or four Viltrumites to conquer a planet. Even at times, they only need to send one to rend a whole small planet. But the Viltrumites would soon find themselves at a severe disadvantage when not even five Viltrumites could even conquer planets. Not because of their weaknesses, but with the evolving technology of other races. One such race, the Ragnarrs, were the first species to be able to repel an entire Viltrumite invasion force due to their tech, seemingly equal strength, and natural affinity for battle. And when other races started to follow, the Viltrumites needed a fresh new tactic to replace their old blitzkrieg technique. As such, the Viltrumites implemented a new, infiltration tactic, in which one of them would be sent to a planet as an agent, who would reproduce and have an army of Viltrumite hybrids at disposal that could conquer an entire planet.

One of these agents, Nowlan, got snuck up on Earth in order to breed and conquer it. However, Nowlan (adopting the name "Nolan Grayson") later relented from his objective and raised his own family. He himself saw that Earth has its own defenses unlike anything he has ever seen, and taking over the planet for the Viltrumites would be a foolish attempt. As even if they took over the planet, its "antibodies" would soon rebel.