Mark Grayson Rule 34

Mark Grayson is the central figure of Robert Kirkman's Invincible comic series and its animated adaptation, a young man who inherits extraordinary abilities from his father, the Viltrumite hero Omni-Man, and adopts the costumed identity Invincible. Raised on Earth by his human mother, he balances ordinary life with the demands of superhero work, learning that his powers come with difficult moral choices and painful family revelations. He is recognisable for his short black hair, athletic build, and the yellow-and-blue Invincible suit, and he is often shown in casual wear such as a tank top. His personality blends earnest idealism with stubborn determination, and he can become fiercely aggressive in combat. Fan artists frequently draw him alongside his father Nolan, emphasise his upper-body physique, and explore battle damage, blood, and quieter moments that contrast his heroic role with personal vulnerability.