You can find a brief guide to the Invincible cast below – and scroll on for more detailed profiles on each character and ... year-old son of Debbie and Nolan Grayson who has been grappling ...

J.K. Simmons, who voices the complex character Omni-Man (Nolan Grayson) in Invincible ... that while some might view Omni-Man as a hero, full redemption may be impossible.

It follows Mark Grayson, a teenager who inherits superhuman powers from his father, Nolan Grayson (Omni-Man ... and nuanced characters. One such character is Mr. Liu, who plays a key role ...