The Viltrumites in Invincibleare incredibly strong, but Mark Grayson's father, Omni-Man, far exceeds his fellow warriors in strength. While Invincible himself is no slouch, Nolan Grayson is one of ...

Born to Nolan Grayson (Omni-Man) and Andressa, a Thraxan, Oliver's unique heritage makes him a fascinating addition to the ...

Omni-Man, also known as Nolan Grayson, is a character created by Robert Kirkman for his Image Comics series Invincible. Father to the superhero Invincible, Mark Grayson, Nolan is shown to be a ...

Omni Man, or Nolan Greyson is introduced as one of the ... By the end of the series, Mark Grayson is by far the strongest character. His Human-Viltrumite genes give him Viltrumite strength and ...