Invincible (Mark Grayson) is an Image Comics Universe superhero. Created by writer Robert Kirkman and artist Cory Walker and illustrated by artist Ryan Ottley, Invincible first appeared in Tech Jacket #1 (November 2002), before graduating to his own self-titled regular series in 2003, as the premier title in Image's then-new superhero line.
Invincible is the son of Omni-Man, an extraterrestrial superhero of the Viltrumite race. Invincible inherited his father's superhuman strength and ability to fly and he has sworn to protect the Earth. As a teenager he had trouble adjusting to his newfound powers and coping with the reality of his origins.