Omni-Man is Nolan Grayson, the Viltrumite father at the centre of Invincible, the superhero series based on Robert Kirkman's comic and adapted as an animated show in 2021. His stern expression and immense strength made him a favourite for dramatic TikTok edits, where creators reframe serious moments with playful captions and exaggerated presentation. The thicc version follows that edit trend, using his imposing physique as the joke rather than his villainous speeches. It remains popular because the contrast between his serious character and the light-hearted edit is instantly recognisable to fans.