Hailing from the mythical realm of Kor, Nommo is a famous African king and guardian of the magical source known as the Mystical Flame of Life until an encounter with Felix Faust robbed him of his power after defeating the rogue sorcerer.

After the events of Flashpoint, the character was revamped as Nommo Balewa, a South African doctor who seemingly adopted his heroic name in modern times shortly after turning to magic to attempted to save his wife during a civil war.

In DC Rebirth, the character's original history and connection was restored along with being descended from the Deserters of ancient Atlantis, continuing to lead the Global Guardians as a pro-active group intercepting threats before they require the attention of more well-known hero strike teams such as the Justice League.

[1] Doctor Mist gathers a number of international heroes to help the Super Friends battle the Conqueror.

Later on, Doctor Mist reappeared and helped Guardian members Jack O'Lantern and Owlwoman escape Bialya.

[4] Trevor sends the Justice League Dark to rescue Mist after he is captured while infiltrating Felix Faust's cult in South America.

This contact has granted him a range of sorcerous abilities, including the manipulation of illusions, altering reality, summoning creatures, conjuring objects, enchantments, and immortality.

While proficient in the art of sorcery, Doctor Mist chooses to operate from behind the scenes, employing duplicity to cultivate an image of greater power and mystery.