Source: marvel.com
4. MODOK
A few people were asking why I left ol’ Big Head off my list of Captain America villains, and it’s honestly because I don’t consider him one.
Yes, I know he first appeared in Tales of Suspense, specifically in the Captain America stories in that book (I have read those comics, you know), but I always found MODOK more suited to fighting the Golden Boy than the striped boy scout.
George Tarleton was a technician working for AIM who was chosen for the MODOC program, which was designed to create a Mental Organism Designed Only for Computing. George got mutated into a hideous big-headed monster that became very powerful and full of murder. He re-christened himself MODOK, replacing the Computing thing with Killing.
He then took over AIM, much to the ire of everyone else in AIM. MODOK would rule AIM for a long time, despite most of AIM straight-up hating him. When he was exiled, he put together a team of D-List supervillains known as MODOK’s 11, with the intention of regaining power. It worked.

