Robert Bruce Banner
Robert Bruce Banner was a thin, bespectacled nuclear physicist who worked on a government nuclear research facility in New Mexico. Having designed and overseen the construction of a nuclear weapon that had a high gamma radiation output, Banner was among those present in the instrumentation bunker of the test site of the bomb's first above-ground detonation. Observing that a civilian had breached security and entered the restricted test area, Banner told his partner Igor Starsky to delay the countdown while he tried to get the civilian to safety. Starsky, secretly an enemy agent, did nothing, confident that Banner would die in the explosion and the project would come to ah alt. Reaching the civilian, a teenager named Rick Jones, Banner threw him into a protective trench. Before Banner could get himself to safety, the gamma bomb detonated, irradiating its inventor with highly-charged, radioactive particles. The radiation had a mutagenic effect on Banner's entire cellular structure, causing him to frequently transform into the vastly powerful, green-skinned superhuman named by the military present at the test site, "The Hulk."