Omni-Man, also known as Nolan Grayson, is the Viltrumite superhero from Robert Kirkman's Invincible comics and the Amazon animated series that premiered in 2021, voiced by J.K. Simmons. He became a massive meme figure thanks to the 'Think, Mark, think' scene and his intimidating father persona. Short greeting clips like this one circulate widely on soundboards, letting creators playfully undercut his menace with a cheerful hello before cutting to his most destructive and quotable moments.