| Omni-Man | |
|---|---|
 Art of Omni-Man from The Official Handbook of the Invincible Universe, by Ryan Ottley and Bill Crabtree. | |
| Publication information | |
| Publisher | Image Comics |
| First appearance |
|
| Created by | Robert Kirkman Cory Walker Concept: Alan Moore & Chris Sprouse |
| Voiced by | Mark Fountain (motion comic) J. K. Simmons (television series, Mortal Kombat 1) |
| In-story information | |
| Alter ego | Nolan Grayson Nowl-Ahn |
| Species | Viltrumite |
| Place of origin | Viltrum |
| Team affiliations | Guardians of the Globe Viltrum Empire |
| Partnerships | Debbie Grayson (first wife) Andressa (second wife) |
| Notable aliases | Nolan Grayson Spencer Samson The Azure Avenger Defender of Democracy |
| Abilities |
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Omni-Man (Nolan Grayson) is a fictional character in the Image Universe, created by writer Robert Kirkman and artist Cory Walker (with Ryan Ottley) as an expansion of a character concept created by Alan Moore and Chris Sprouse. Omni-Man is the father of Invincible and Oliver Grayson, and a member of the alien Viltrumite race, working as a superhero on Earth. Omni-Man appears in Supreme, Invincible, Noble Causes, and Dynamo 5.
In the Invincible television series and the video games Invincible: Guarding the Globe and Mortal Kombat 1, Omni-Man is voiced by J. K. Simmons.