Infamously known as the fallen "superhero" Omni-Man, who is also secretly known by his adopted Earth name Nolan Grayson. He is a former high-ranking Viltrumite warrior, one of the most powerful of the Viltrum Empire, until his time on Earth changed him for the better. He left the Empire to join the Coalition in aiding them to end the tyranny of his own people once and for all. He is a member of the Viltrumite race, a humanoid species of extraterrestrial origin who possess super strength, super speed, virtual immortality, and flight. As is customary for male Viltrumites, Omni-Man sports a large mustache. In short, Nolan was a conflicted man who developed a love for Earth against his will but wanted to convince himself he's still a loyal Viltrum soldier. After destroying many lives at his new home, Nolan had "woken up" and started to feel guilt, becoming an actual hero in the process. He is a close friend, and former archnemesis of Homelander, and vice-versa. Both of them follows the philosophy that superheroes needs to kill the villains, enemies, and opposition, rather than sparing their lives or locking them up.