Theodore Sallis (Mega-Earth)

History
Dr. Theodore Sallis was a professor who worked for the United States Army on "Project: Gladiator", to replicate the Super-Solider serum.

Due to the importance of his work, he moved into the Everglades with his wife Ellen Brandt, who secretly was an AIM agent to get the serum.

One day, Ellen led an AIM ambush, Ted fled with his car. While fleeing, Ted injected himself with only sample of the serum just before he crashed into the swamp.

Instead of dying, the serum mixed with the supernatural nature of the swamp, turned him into the creature of pure emotion with no intelligence, later to be known as Man-Thing.

After the transformation, he slew the AIM agents and horribly burned Ellen's face.