Personality. Omni-Man initially shows the persona of an ideal super hero— brave, heroic, and willing to sacrifice himself for others. To the average viewer, his status as a hero was certain and undoubted, eventually revealed in true nature over the turn of the show. Also as a Viltrumite, Omni-Man's genetics are so potent, they almost completely overshadow any genetics his offspring will inherit from the other parent, making said offspring almost purely Viltrumite themselves.