Parasite

Parasite is a name used by several supervillains in the DC Universe, but the most recurring one is the second; Rudy Jones, a metahuman enemy of Superman. He was a janitor in S.T.A.R. Labs before being exposed to a biological weapon designed to absorb energy from anything it touches, which transforms him into a energy vampire. However, this story was changed Post-Infinite Crisis to instead involve Jones accidentally eating a radioactive donut. The first Parasite was Raymond Maxwell Jensen, a menial laborer employed at a research facility who incautiously opened a toxic waste disposal contain...