About
Nolan is one of the deuteragonists of Invincible, initially debuting as the main antagonist of Season 1, before beginning to redeem himself as the deuteragonist in Season 2 and onwards. He is infamously known as the fallen "superhero" Omni-Man, who is also secretly known by his adopted Earth name Nolan Grayson. He is the estranged husband of his first wife Debbie Grayson and widower to his late second wife Andressa, the father of Mark and Oliver Grayson.
He was a high-ranking Viltrumite warrior of the Viltrum Empire, formerly dedicated to aiding the Viltrumite mission to make it the only empire in the universe, until his time on Earth changed him for the better. He left the Empire to join the Coalition of the Planets in their struggle to end the tyranny of his own people once and for all.