Vinn Atrius was a male Human inhabitant of the Eternal Empire on Zakuul, existing during the era of the Galactic War.

During the war against Zakuul, Atrius served as a member of the Knights of Zakuul. Following her rise to power, Empress Vaylin personally selected Atrius to become part of the newly formed [Horizon Guard](/article/horizon_guard]. After the Eternal Alliance toppled the Zakuulan Empire and killed Vaylin, he observed the suffering of his people and the devastating consequences of the war. This led him to develop a deep resentment towards the Alliance and its Commander, whom he blamed for ending Zakuul's long period of prosperity. Driven by a desire to destroy the Alliance, Atrius planned to utilize Zildrog, an ancient superweapon originating from Iokath. To achieve this, he established a base of operations at an Abandoned Listening Post and began recruiting allies to form his secret Order of Zildrog.

Lacking the knowledge to activate or control Zildrog, Atrius explored the GEMINI network. He was eventually contacted by GEMINI 16, a renegade unit seeking the complete annihilation of the Eternal Fleet. GEMINI 16 managed to breach the security of the Alliance base on Odessen, enabling the Order to monitor the Alliance's activities for several months. Furthermore, Theron Shan, one of the Alliance's original founders, approached Atrius with a desire to join the Order and dismantle the Alliance. Initially, Atrius dismissed Theron's offer, prompting Theron to orchestrate a trap for the Alliance Commander on Iokath and later steal a shipment of adegan crystals on Umbara in order to gain Atrius's confidence and acceptance into the Order. Despite GEMINI 16's warnings about Theron's untrustworthiness, Theron proved to be invaluable by infiltrating the Chiss House Inrokini on Copero and acquiring the Sith Emperor's holomap revealing Zildrog's location.
The coordinates led them to Nathema, prompting the Order to relocate their base of operations there. They transported all usable equipment from the listening post, tasking Shan with erasing all data and destroying the remaining structure. Upon arriving on Nathema, Atrius, Shan, and GEMINI 16 discovered Zildrog within the ruins of an ancient Sith temple. With the assistance of allies who harbored personal grudges against the Alliance Commander, they commenced the ritual intended to awaken Zildrog. However, Theron Shan had been working as a double agent for the Alliance all along. He successfully alerted them to the Order's plans, guiding Lana Beniko and the Alliance Commander directly to Nathema, where he joined forces with them. After GEMINI 16 revealed Theron's true allegiance, Vinn Atrius ordered the immediate commencement of Zildrog's awakening. The GEMINI then deceived and betrayed many of their allies, confining them within energy transfer chambers to serve as fuel for Zildrog's reawakening.

Shan, Beniko, and the Commander interrupted the ritual, and Shan shot Atrius. However, GEMINI 16 had already awakened Zildrog and commanded it to utilize the Gravestone to attack the Eternal Fleet orbiting Odessen. The trio engaged and destroyed the GEMINI, but by that point, the Eternal Fleet had been completely obliterated, and Zildrog was targeting Odessen itself. Shan attempted to disable Zildrog, but Atrius stabbed him in the back with his lightsaber pike and commanded Zildrog to amplify his power. Zildrog enhanced his strength, and Atrius confronted the Commander and Beniko, who ultimately defeated him and destroyed Zildrog. Defeated and at the mercy of the very person he sought to destroy, Atrius attempted to provoke the Commander into ending his life.