Jimmy Olsen (Giant Clone)
The top-secret genetics research facility known as the Cadmus Project collected the DNA from many citizens, and used them in their experiments. One of the most useful samples was from Jimmy Olsen, who was cloned repeatedly and used as guards for the faucility.
When evil scientists Mokkari and Simyan raided the Project, they stole an Olsen sample, which they used to create an evil giant clone Jimmy Olsen! Super-strong and producing Kryptonite radiation, the giant clone Jimmy Olsen was sent to destroy Superman and the Cadmus Project.