Dr. Myu

Dr. Myu is a brilliant scientist who desires nothing more than total control of the galaxy. Dr. Myu masterminds the plot to build an ultimate Machine Mutant with enough power to see his sinister goal of control through to the end. To this end, he created a powerful enforcer named General Rilldo, and tried to gather the Black Star Dragon Balls to use them to complete his creation, Baby, and use it to take over the universe. ~!However, Goku, Pan and Trunks got past General Rilldo and foiled Dr. Myu's plans. Dr. Myu escaped, but was killed when Baby burst out of his body. It was revealed then that Baby was actually the one that programmed Dr. Myu, and not the other way around. Dr. Myu later teams up with Dr. Gero in Hell and creates another Android 17, who controls the original Android 17 and converges their powers together to set a rift between Earth and Hell. Hell's Android 17 and the two scientists escape, following which the two Android 17s eventually fuse together to become Super 17. Super 17 betrays and kills Dr. Gero thanks to Dr. Myu's programming changes, then goes on to dominate the Z Fighters (including Super Saiyan 4 Goku thanks to his absorption field ability) that Dr. Myu truly believes he can take over the universe, until Android 18 shows up and gets in his head by appealing to his sense of self. Dr. Myu, in anger at Android 18's apparent influence, orders Super 17 to destroy Goku and Android 18 with his Electric Hell Sphere attack so as to show them "who he really is" and that he "can't be manipulated or controlled". However, Super 17 turns on Dr. Myu, the very man who had been using him the entire time, and destroys him with the attack. !~ © http://dragonball.wikia.com