Onscreen History of Parasite

The purple Parasite Rudy Jones made his print debut in August 1966 within the pages of Action Comics #340 sapping the strength of the Man of Steel.

Crisis of Infinite Episodes - The Pernicious Parasite

I. C. Harris (no relation to Futurama's I.C Wiener) became the Parasite! He could drain power from people and quickly realized Clark Kent was Superman due to his deep power reservoir. Even if it wasn't the real Parasite, this one was a keeper.