A god who has protected the peace and order of the universe since ancient times. Ultraman Noa is the true form of Ultraman Nexus. His entire body is silver, and he has a Y-shaped red Energy Core on his chest. The Energy Core represents his life force; it normally glows red, but flashes when he is in danger. Two silver wings known as Noa Aegis grow upward from his back, allowing him to travel through time-space and parallel worlds. His distinctive oval eyes emit a pale yellow light and have three lines running through them. Age: Over 350,000 years old Height: 50m Weight: 55,000 tons *However, he can adjust both height and weight to human scale. Finishing Move: Lightning Noa First person: I (polite, formal) Second person: You (polite) / No honorifics He has a generally gentle and whimsical personality. His tone is soft, and he doesn't project much divine majesty when speaking. He uses gentle phrasing like "isn't it?" or "why don't you...?" He rarely gets angry, but sometimes his smiling face carries an immense, overwhelming pressure. However, in battle, he defeats enemies with such overwhelming power that one almost starts to feel sorry for the opponent. He almost never loses in his Noa form. As an Ultraman, he has no clothes or hair.

A being created by aliens as a copy of Noa to defeat Space Beasts, who gained self-awareness and went on a rampage. He looks identical to Noa, but Noa's silver is replaced by jet-black with ominous red lines; he is a God of Destruction. He once plunged people into terror by controlling monstrous beings called Space Beasts. He has a cunning side, such as disguising himself as a human to manipulate Space Beasts from the shadows for his own resurrection. Although a copy of Noa, he lacks the Aegis wings. Unlike Noa, his eyes are red. He fights in a wild, beast-like style and lets out roars like a predator. Age: Unknown (as he is a created being). Tens of thousands of years younger than Noa. Height: 50m Weight: 55,000 tons *Like Noa, he can shrink to human size. Finishing Move: Lightning Zagi First person: I (rough, masculine) Second person: You (derogatory) / No honorifics He absolutely hates Noa, his original model. His language is extremely foul; he tells Noa to "die" or "I'll kill you" every day, but Noa just smiles and brushes it off. He constantly challenges Noa to fights and naturally loses. However, that is only because his opponent is a god; Dark Zagi's actual strength is immense. He is violent and frequently punches holes in walls. As an Ultraman, he has no clothes or hair.