Mettaton

"SO WHAT IF A FEW PEOPLE HAVE TO DIE? THAT'S SHOW BUSINESS, BABY!"

- Mettaton Mettaton (/ˈmɛtəˌtʌn/) is a robot with a SOUL and was built by Alphys. Initially poised as an entertainment robot turned human killing robot, Mettaton is later revealed to have only acted as such. Mettaton is the sole television star of the Underground.