Omni-Man, also known as Nolan Grayson, is voiced by J.K. Simmons in the Invincible television series as well as in the video games Invincible: Guarding the Globe and Mortal Kombat 1

. J.K. Simmons is well-known for his distinctive voice and has portrayed Omni- Man with a powerful and intense tone that aligns with the character's complex nature