The Alien Queen is the central antagonist in the anime series Uchuu Kaijuu. As the leader of the alien monsters invading Earth, she commands her minions with intelligence and a ruthless demeanor. Her appearance is imposing and otherworldly, making her a formidable adversary for the protagonists. Throughout the series, the Alien Queen's motivations and tactics drive much of the conflict, pushing the human characters to their limits as they attempt to defend their planet from her relentless attacks.