The Iron Colonel
The Iron Colonel hired out Dr. Norton Ganss to create programmable Dynamoids for him at some point in the mid to early 1980s. This was discovered by the Las Vegas hero Mirage in 1984. Honor Guard eventually tracked down his base in the Andes Mountains in South America.
It's not for certain whether he is robot or a man in an armored suit. He used footsoldiers in armored suits.