Alien Empera(エンペラ星人Enpera Seijin) is the main antagonist of Ultraman Mebius. He is the master of Mephilas, Glozam, Deathrem and Yapool. Alien Empera appeared in the final 3 episodes in the series (episodes 47-50.) Alien Empera, as well as his creation, Armored Darkness are among the most powerful foes in the Ultra series. Alien Empera has only appeared in Ultraman Mebius.