The main antagonist of the series and Sonics arch nemesis, Dr. Ivo Robotnik, more widely known as Dr. Eggman, is an iconic video game villain. With an astounding IQ of 300, the major antagonist is constantly out to destroy the world and create the Eggman Empire and his "utopia" Eggmanland in its place. The vile doctor has committed many atrocious acts, from imprisoning innocent animals and enslaving aliens to nearly destroying the entire world. He's also attempted harnessing ancient beings to do his bidding, even trying to control all of spacetime.