Xako

Golden Age Origin
Xako was described as a demonic intelligence trapped in the body of a giant spider. He fancied himself the puppet master of the universe and his intention was to destroy all life on earth, so it could be inhabited by his race from the spider star region of space. He appeared to be lost in space after being struck by a comet while trying to destroy the spacecraft of Rick Evans.

Xako was about the size of a large elephant and could spin massive webs, capable of catching a large vehicle. He was also capable of controlling matter and surviving in space, unaided.

Golden Age Appearances
The Green Mask vol. 2 #5