Alien Barossa is a recurring alien species in the Ultraman franchise, including Ultraman Omega. They are notorious scavengers and opportunistic troublemakers who steal and hoard powerful items, weapons, and technology from across the universe. In the series, Alien Barossa serves as a chaotic antagonist whose schemes create danger and complications for the heroes. Their presence often adds a mix of comedy, menace, and unpredictability, making them a memorable recurring foe rather than a purely one-time villain.