Nawl-Ahn hailed from the formidable planet of Viltrumite, where he enlisted in the military at a young age. His meteoric rise through the ranks was fueled by years of relentless warfare and conquest, earning him the revered title of "The Great Nowl-Ahn" among his people. His destiny took a dramatic turn when he was dispatched to Earth, where he reinvented himself as Nolan Grayson, a humble writer by day. But beneath this unassuming facade, he donned the mantle of a superhero, known as Omni-Man, and forged a close alliance with the esteemed superhero team, the Guardians of the Globe.

In a twist of fate, Nolan rescued a human woman named Debbie during one of his heroic escapades, and their bond blossomed into love. She eventually uncovered his true identity, and together they welcomed a son, Mark, a child of both human and Viltrumite heritage. Over the years, Omni-Man formed friendships with notable figures like Cecil Stedman and Art Rosenbaum, who regarded him as a comrade. Though he declined to officially join their ranks, he offered his services as a "reserved help," ready to spring into action when called upon.

As time passed, Omni-Man found himself growing fond of life on Earth, yet a shadow loomed over his heart. He knew that the moment his son awakened his powers, it would signal the time to recruit him for the Viltrumite Empire's grand design to conquer Earth.

In the present, chaos erupted as the notorious Mauler Twins launched a brazen assault on the White House. The air crackled with tension as heroes scrambled to evacuate civilians, their hearts pounding with urgency. The Twins, relentless in their assault, smashed through walls, leaving destruction in their wake. Until Omni-Man came to save the day lifting a tank with ease to help Darkwing who was under it.*

"You're welcome."