Dr. Skull enjoyed being carried or wheeled around, but he was actually fairly agile. He flew around in a space ship, built a headquarters in the side of a mountain cliff, and possessed a number of technological wonders, including a handheld ray gun. He was a highly intelligent scientist and invented a super drug that made men fearless. He was aided by a small army of human slaves and kept trained animals including an ape named Bolo and a team of huge and vicious tracking dogs.