Did you know.....
The Incredible Hulk's green skin color was initially due to a mistake in the printing process? In the debut of Stan Lee's comic book series "The Incredible Hulk," Lee gave the Hulk a gray skin color to purposely disassociate the monster with any particular ethnic group. However, there were problems with the gray coloring, which resulted in a different-hued Hulk in each copy. Some of copies were green and, when Lee saw them, he decided that green suited the Hulk better than gray.