Dr. Kochin (Dr. Cochin in the anime version) was Dr. Wheelo's assistant and right hand man. They were once scientists working on an expirament to make Dr. Wheelo into the most powerful fighter in the world, when suddenly a blizzard occured and caused a cave in and Dr. Wheelo was killed. He preserved his brain in a tank within a frozen fortress. After some time, old age caught up to him and he had his creations put his brain inside of an android replica of his body. Some time later he gathered the Dragon Balls and summoned Shenron to thaw out the cave which was encased in ice.