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 Wallen 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 designer 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. Sean Wallen was killed by Rai'uk after he was ordered by Conrad Olson to take the remaining Anurai artifacts back.
- James Cameron's Avatar: The Game (Wii/PSP)
- James Cameron's Avatar: The Game (Wii/PSP) Instruction Booklet