Visually memorable, with a gold eye and a gold plate in his head, Gold had no superpowers, but stands as a surprisingly unique figure in comicdom. He was out to conquer the world (or at least Canada) it's true but, unlike a Dr. Octopus or even a Dr. Doom, his forte was manipulation and behind-the-scenes machinations. In some respects, he can be seen as having anticipated the direction taken by Superman foe, Lex Luthor, in recent years.
Gold, with his casual dress, the evidence of physical trauma, and the rugged way he was drawn, smacked a little of a self-made man -- though his true origins were never explored. In his #12 cameo, he was also being re- positioned, like all great villains, as a scientific genius as well.
The
proverbial (and literal) mad scientist, Walker cropped up in two separate
stories (#2 and the Summer Special) both times as an underling working
for another. He went insane at the end of #2, was better by the Summer
Special, but got killed off -- though, in true comic book style, his body
wasn't recovered.
of that story, we learn they are actually outlaws from their own worlds
(opening the door, presumably, to friendlier alien contact).
C.C's
traitorous partner from #1 wore a similar costume, though it was blue where
C.C.'s was red. He also appeared in #2, out of costume. Not a big contender;
nonetheless, Blue Fox might have filled the obligatory "player on the other
side" role -- that is, a recurring villain whose abilities duplicate the
hero's (albeit, without the alien enhancement).