Hulk - Mr. Bruce Banner
Bruce Banner, the intelligence runs in his blood with his father being a scientist himself, Soon has Bruce completed his schooling education he started focusing on Nuclear Physics, he was then working on a Military base, this is where he was testing his new Gamma Bomb.
On the day of testing before they could detonate the bomb, Bruce had a look at the test site and that's when he saw a person enter. Bruce run in and pushed the kid to safety his name was Rick Jones. Igor Drenkov went ahead and continued the count down which set the bomb exposing bruce to a high amount of gamma radiation.
Once they were retrieved and taken to safety they were isolated and treated and that's when Bruce first turned into the Hulk