We stay in the Fantastic Four’s playground with their first super-villain nemesis (their first, and perennial, nemesis being Reed Richards’ hubris), the Mole Man.
He was sort of Dr. Moreau in the Center of the Earth. He raised or hatched or grew or whatever an army of little spastic yellow people and a few monsters, and occasionally he would sneak below Manhattan and steal the Baxter Building.
It’s nice to see him on the pass, though: he’s completely C-List. I’m pretty sure Daredevil could kick his ass. The Marvel Universe was full of jobbers: Spidey’s were the worst. the Shocker, Sandman, freaking Hydro-Man (worst name ever). Plus the seemingly endless animal bad guys that got a few one-liners and a snoot full of webs each month: (Doing this from memory, I promise: let’s see how I wasted my childhood) Vulture, Grizzly, Beetle, Rhino, Lizard, Tarantula, Scorpion, Doctor Octopus, Cobra, Chameleon. One might or might not include the Red Ghost and his Super-Apes, which were an actual team of apes with super-powers that used them for evil and were also communists. I swear to every god there is that what I just wrote is a fact.
p.s. I was at this show. I was not invited backstage.