Sonic the Hedgehog (character)
Doctor Eggman: Doctor Eggman is a smart scientist. He likes to make an army of robots to take over the world, but Sonic and his friends always keep making sure he fails. He was first shown in Sonic the Hedgehog. In early U.S. releases of the games, he was called Doctor Robotnik. He is called Doctor Eggman because his body is shaped like an egg.