Read more about Mole Man at: Wikipedia
Official Site: Marvel
The Mole Man was originally Harvey Rupert Elder, an American nuclear engineer and explorer. Elder was socially shunned due to a combination of his abrasive personality and his homely, dwarfish appearance. Furthermore, his fellow explorers ridiculed him for his eccentric, crackpot theories regarding a Hollow Earth. In 1956, while following the group of explorers called the Monster Hunters, he stumbled upon Monster Island, which was at the time a base of the Deviant Warlord Kro (at the time, Monster Island was located near Japan, although other stories place it in the Bermuda Triangle; some issues of X-Men have portrayed them as two distinct separate locations).
When Elder fell into a massive cave leading deep into the underground realm of Subterranea, he decided his theories had finally been vindicated. However, he suffered permanent damage to his eyes when he gazed directly upon a highly reflective deposit of diamonds. Partially blind and apparently secluded from the surface world forever, Elder dubbed himself the Mole Man and began exploring his new home. He eventually became the ruler of the branch of Subterraneans now known as the Moloids, and the ruler of much of Subterranea and the caverns of Monster Isle. He used the Deviant-derived creatures and technology that he found in Subterranea to strike back at the outer world in numerous attempts to rule or humble the world that had rejected him.
The Mole Man conducted attacks on the surface world by destroying power plants until he was opposed by the Fantastic Four in their first adventure on Monster Isle. The Mole Man apparently destroyed Monster Isle in an atomic blast, although it was seen on several other occasions. The Mole Man's Deviant-bred monstrous mutates, collectively known as the "Mole Man's Monsters", include the three-headed Tricephalous, the horned Megataur, and the flying bird-insect creature known only as "Skreeal". The Mole Man also has a group of superhuman allies called the Outcasts.
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