Alien Metron is a recurring extraterrestrial antagonist in Ultraseven, known for his calm, sinister demeanor and highly intelligent tactics. He is one of the most memorable enemies in the Ultra Series, often depicted as a manipulative invader who uses deception, psychological warfare, and advanced technology rather than brute force. In Ultraseven, he serves as a representative threat from space, embodying the series' themes of alien infiltration and the danger of hidden hostility among humans.