Odin is a powerful cyborg and the main antagonist of the Yggdrasil arc, the first story arc of the 1979 Cyborg 009 anime. He serves as the leader of the Norse God Cyborgs, a group of cyborgs who adopt the names and identities of figures from Norse mythology. While some members of that group drew on earlier material, this particular incarnation of Odin was largely original to the 1979 adaptation, reimagining the mythological god as a calculating cyborg villain.

In personality and method, Odin is deceptive and strategic. His plan to take over the world centers on convincing humanity that he and his fellow cyborgs are genuine gods, using the reverence and confusion this creates to establish control. To support his scheme, he disguises himself as an elderly, bearded traveler, a form that allows him to move among people unnoticed and gather intelligence on the 00 cyborgs, the heroes he must overcome.

Within the story, Odin is the driving force of the Yggdrasil conflict, commanding the other members of his group, including Freyja and Thor, in their campaign against the 00 cyborgs. His role as their leader places him in direct opposition to 009 and his teammates, and his ambition for world domination makes him the central threat of the arc. His key relationships are defined by his authority over the Norse God Cyborgs on one side and his adversarial pursuit of the 00 cyborgs on the other, whom he studies through his disguised encounters.

As a cyborg, Odin possesses enhancements that make him a formidable opponent, and his effectiveness as a leader is matched by his cunning use of false identities and his willingness to manipulate public perception. His presence shapes the opening conflict of the 1979 series, establishing him as a dangerous foe whose power lies as much in deception as in combat.