Canonicity Notice The contents of this article are non-canon to the Avatar franchise.
Con, he doesn't care about what I took from his village. He cares about what I did to it, and he won't stop until he has me. I saw it... I saw it in his eyes...
Sean to Conrad regarding Rai'uk
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Sean Wallen was a major for Interstellar Security Management Ltd.
He and Conrad Olson were good friends. Sean also worked as head of security for Conrad at Lockhart on Pandora. Sean was recognizable by a tattoo on his right arm: a black spade with a white skull on it.
Sean with his friend Seth liked to shoot banshees near the Hallelujah Mountains. He participated in raids on Na'vi villages and robbed their artifacts, which he then sold at black markets on Earth. He even sold genetically-engineered banshee hides to questionable fashion designers on Earth. He was responsible for the near-total eradication of the Anurai clan. After this event, he was hunted by the surviving members of the clan, Rai'uk and Kyuna.
Avatar: The Game[]
Rai'uk managed to track down Sean during one of his sorties for artifacts, after which, using a wild banshee sitting in a cage, Rai'uk caught up with Sean's Scorpion and forced him to crash in the forest after a fierce dogfight.
Sean arguing with Conrad over returning the artifacts.
Sean survived the accident but was out of action for a while, and by the time he got back on his feet, Rai'uk had already blown up the RDA base in the Omatikaya clan's territory. Realizing that this Na'vi was becoming a big problem, Conrad ordered Sean to return all the artifacts to the ruined village of Rai'uk, hoping that this would calm him down. Sean doubted this very much: he saw the killing intent in Rai'uk's eyes, and knew that he would not stop.
Sean killed by Rai'uk.
Sean decided to instead kill Rai'uk before being killed first, and found Rai'uk at the Tree of Voices. Equipped in an AMP suit, Sean said that there is an old saying on Earth: "He who seeks vengeance must dig two graves: one for his enemy and one for himself." In the ensuing battle, Rai'uk killed Sean and was finally let go of his hatred, albeit awakening a new one in Conrad.