There’s no doubt that JK Simmons' Omni-Man is the most powerfulInvinciblecharacter to have visited Earth, but the subject of who was the most fearsome being before his arrival is a matter of some debate. However, there’s only one real answer. Omni-Man’s immense power is so prominent that it’s not one of thethings viewers will need to remember ahead ofInvincibleseason 3. Instead, his displays of dominance are likely to be etched into the minds of fans forever more.
Although Simmons' character will have a different role inInvincibleseason 3’s storycompared to his debut back in 2021,it’s important to remember Omni-Man’s history and main competitors. Still, he remains at the top of the list of themost powerfulInvinciblecharacters within the Amazon show’s canon. This fact has been an advantage and a main threat to the story’s heroes (and sometimes villains) so far, but there was a time when the title of Earth’s mightiest superbeing was held by someone else.

The Immortal Was Earth’s Top Hero Before Omni-Man Arrived
Omni-Man supplanted the Immortal when he arrived
Certain powers aside, Omni-Man is essentially a beat-for-beat homage to Superman. So, it’s tough to see how anyone could even come close to that level of power. Whileno one has surpassed Simmons' character in terms of brute force, Ross Marquand’s the Immortal was at the top of Earth’s hero rankings before Omni-Man came to the human homeworld. As a kind of nerfed blend of Superman and Wolverine, it’s easy to see how the Immortal held such a position.
Mark Grayson’s Powers & Abilities In Invincible Explained
Mark Grayson appears to be one of the strongest characters in Invincible, and his interesting set of powers are what make him such a capable hero.
The Immortal’s true age and origin story have yet to be revealed inInvinciblebut he has at least been confirmed to be over 1,000 years old. He also began life as an ordinary human being. As such, he was on Earth for centuries before Omni-Man arrived. Similarly,Omni-Man lived a very long life on Viltrum before heading to Earthto prepare it for domination by his people.Omni-Man’s age inInvinciblehas been kept just as vague as the Immortal’s, but both men are very, very old by conventional human standards.
How Much Stronger Is Omni-Man Compared To The Immortal?
The Immortal is a challenge for Omni-Man (but only just)
Omni-Man has won all of his fights with the Immortal inInvincibleso far. However, the Immortal has put up with a lot of physical punishment from the Viltrumite, and he also has a brilliant healing factor to fall back on. They’re both equally agile in the air due to their shared ability to fly. Unfortunately,Omni-Man has been consistently able to hurt the Immortal in ways that were far more extremethan the other way around. However, it’s almost impossible for the Immortal to be permanently killed, whereas Omni-Man can meet his end forever inInvinciblecanon.
