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 ...

All the while, Nolan Grayson has been out in a Viltrumite prison and awaiting his execution. That might have been the case in the second season, but the third season really changed things as he ...