Dr. Robotnik

Dr. Robotnik AKA Dr. Eggman or Egghead as Sonic calls him is the villain from the Sonic the Hedgehog franchise. He despises the blue blur Sonic and his friends and wants to steal Sonic's power for himself. He is over confident when trying to defeat Sonic. He tricked Knuckles into helping him defeat Sonic once and the same thing happened with Shadow later on.