Tragg is the supreme ruler of the Viltrumite Empire and the most powerful of his race. He holds the position of Regent, effectively becoming the absolute leader of the Viltrumites following the death of the previous Emperor.

Tragg was bred as the ideal Viltrumite—the result of rigorous selective breeding aimed at creating a being superior in strength, endurance, and will. From the very beginning, he was considered the epitome of his race: physically flawless, devoid of weaknesses, and completely devoted to the ideals of the Viltrumite Empire.

Following the death of Emperor Argal, the empire's power was threatened. During this period, Tragg was appointed Regent—an interim ruler tasked with maintaining order and continuing expansion. However, over time, his power became absolute, and he became the undisputed leader.

Under his rule, the Viltrumites continued their policy of conquest and subjugation of other worlds. Tragg adheres to a strict ideology: only the strongest survive, and the weak have no right to exist. He believes that the Viltrumites are obligated to dominate the universe, and sees this as the natural order of things.

Despite the near-destruction of his race as a result of a viral attack, Tragg did not abandon his goals. On the contrary, he became even more determined. Realizing that the Viltrumites' numbers were critically low, he began a program to restore the race, including forced breeding with members of other species.

Tragg is known for his cruelty and absolute self-righteousness. He tolerates no disobedience and will not hesitate to destroy even his own kind if he deems them unworthy or traitors. His strength is so great that he can best virtually any Viltrumite in direct combat.

One of his main opponents is Omni-Man, and later his son, Invincible. Their confrontation becomes not only a battle of strength but also a clash of ideologies: absolute domination versus the right to choose and compassion. Over time, Tragg finds himself isolated from the former empire, but undeterred. Even deprived of power and resources, he continues to build his own army and strives to regain his status as ruler, believing it his natural right.

Regent Tragg is the embodiment of Viltrumite ideology in its purest form: strength without question, power without restraint, and a goal for which any means are permissible.