Spook

Origin
The Spook was a mad man who had an extreme sensetivity to light, and therefore choose to dwell in a dark, subterranean, dungeon-like lair. In his lair, he commanded a small army of emaciated zombies that he referred to as his "Skeleton Men." The Spook ruled his army of undead from atop a throne decorated with skulls. Within his dungeons, the Spook enjoyed torturing the living who were unfortunate enough to cross his path. His dungeons contained a number of medieval torture and killing devices. The villain known as the Panther, was sentenced to die beneath a swinging pendulum blade. The Spook also tried to kill detective Ace Powers, but Ace managed to escape and had the local police blow up the entrance to the Spook's lair.

The Spook was a man of imposing stature, standing close to 7 feet tall. Although he was not a great combatant himself, his "Skeleton Men" were strong and did not feel the effects of gunshot wounds. It is unclear if the Skeleton Men were a product of science or magic, but it is clear that the Spook created them. The Spook likely had good vision in low light, and his dungeons were filled with every instrument of death and torture.

Golden Age Appearances
Silver Streak Comics #6