Invincible (character)
Markus Sebastian "Mark" Grayson, better known by his heroic mantle Invincible, is the titular main protagonist of the Image Comics series Invincible and the animated TV series.
He is a young man new to the superhero scene, but enthusiastic about doing good in the world. He gained his powers during his senior year in high school and decided to become a superhero like his father, Omni-Man. He is the first half-human and half-Viltrumite hybrid of his generation who spends most of his time protecting innocents and later became a father himself.
Despite all of the suffering he has faced during his tenure as a superhero, Mark would persevere and save the world and galaxy from threats.
He was created by Robert Kirkman and Cory Walker, and first appeared in Invincible #1 in January of 2003.