Neutron is a fictional character appearing in American comic books published by DC Comics. He is usually an adversary of Superman. Publication history Neutron first appeared in Action Comics #525 (November 1981) and was created by Marv Wolfman and Joe Staton. Fictional character biography Nathaniel Tryon was a petty thug who teamed up with two others as the TNT Trio. While on a caper at a nuclear power plant at which he worked as a security guard, Tryon was caught in the meltdown of a nuclear reactor, turning his body into sentient nuclear energy that could only be contained in a special containment suit. After learning how to control his energy, and learning that the accident was allegedly caused and covered up by the U.S. Government, Tryon killed those responsible for the accident and took up a criminal career as Neutron. Eventually, he battled Superman, and was defeated and imprisoned. He was later released by the manipulations of Abraxas Industries as part of an apparent work release program, when actually it was part of a propaganda campaign against Superman spearheaded by Vandal Savage. Neutron's part was to engage in seemingly random acts of destruction, when actually he had hired himself out as a deconstruction engineer, a fact which of course did not come out until after Superman had fought and arrested him. Vandal's schemes would later be revealed to the public, and Neutron was apparently arrested and re-imprisoned for his part in them. He is next seen held at the research facility, S.T.A.R. Labs. He was eventually freed when S.T.A.R. Labs was attacked by mercenaries hired by the Fearsome Five. They took him and Jinx, whom they freed from Tri-State prison, into their ranks. Neutron subsequently left the group. Neutron eventually joined Warp and Plasmus on a mission from Conduit to assassinate Jonathan and Martha Kent, the adoptive parents of Superman. Superman intervened and the clash ended with Plasmus and Neutron colliding in a blast that obliterated them both. Both later turned up alive, and Neutron was next seen in Slabside Island prison (aka "The Slab"), from which he was freed during the Joker’s "Last Laugh" riots. Recently, Neutron and several other villains were manipulated by Manchester Black into threatening Clark Kent’s loved ones, but as had happened before, the ensuing confrontation with Superman ended with Neutron disappearing in an atomic blast. In Infinite Crisis, Neutron became a member of