The Hulk is a fictional superhero appearing in comic books published by Marvel Comics. Created by writer Stan Lee and artist Jack Kirby, he first appeared in The Incredible Hulk #1 in 1962. The character is known for his immense strength and green skin, which emerge when scientist Bruce Banner transforms due to emotional stress or anger. The Hulk's alter ego, Bruce Banner, is a brilliant scientist who was exposed to gamma radiation during an experiment. This exposure triggers his transformation into the Hulk, a powerful creature that embodies his rage. The character has appeared in various media, including movies, television shows, and video games, becoming a significant part of the Marvel Universe.