The Hulk is a superhero appearing in American comic books published by Marvel Comics. Created by writer Stan Lee and artist Jack Kirby, the character first appeared in the debut issue of The Incredible Hulk (May 1962). In his comic book appearances, the character, who has dissociative identity disorder (DID), is primarily represented by the alter ego Hulk, an immense, green-skinned, hulking brute, possessing a limitless degree of physical strength, and the alter ego Dr. Robert Bruce Banner, a physically weak, socially withdrawn, and emotionally reserved physicist, both of whom typically resent each other. Lee stated that the Hulk's creation was inspired by a combination of Frankenstein and Dr. Jekyll and Mr. Hyde.
Following his accidental exposure to gamma rays while saving the life of Rick Jones during the detonation of an experimental bomb, Banner is physically transformed into the Hulk when subjected to emotional stress, at or against his will. This transformation often leads to destructive rampages and conflicts that complicate Banner's civilian life. The Hulk's level of strength is usually conveyed proportionate to his anger level. Commonly portrayed as a raging savage, the Hulk has been represented with other alter egos like a gangster (Joe Fixit), a merged personality (Professor Hulk), a brilliant warrior (Green Scar), Banner's inner child (Big Guy), Big Guy's self-hating father figure (Devil Hulk), a genius scientist in his own right (Doc Green), and several minor alter egos.
Despite Hulk and Banner's desire for solitude, the character has a large supporting cast. This includes Banner's love interest Betty Ross, his best friend, Rick Jones, his cousin She-Hulk, and therapist and ally Doc Samson. In addition, the Hulk alter ego has many key supporting characters, like his co-founders of the superhero team the Avengers, his queen Caiera, fellow warriors Korg and Miek, and sons Skaar and Hiro-Kala. However, his uncontrollable power has brought him into conflict with his fellow heroes and others such as General Thunderbolt Ross, Betty's father. Despite this, he tries his best to do what's right while battling villains such as the Leader, the Abomination, the Absorbing Man, and more.
One of the most iconic characters in popular culture, the character has appeared on a variety of merchandise, such as clothing and collectable items that was inspired by real-world structures (such as theme park attractions), and been referenced in several media. Banner and the Hulk have been adapted into live-action, animated, and video game incarnations. The character was first played in live-action by Bill Bixby and Lou Ferrigno in the 1978 television series The Incredible Hulk and its subsequent television films. In the 2003 film Hulk, the character was played by Eric Bana. In the Marvel Cinematic Universe (MCU), the character was first portrayed by Edward Norton in the film The Incredible Hulk (2008) and then by Mark Ruffalo in later appearances in the franchise.
The Hulk was created by Stan Lee and Jack Kirby. Lee cited influence from Frankenstein and Dr. Jekyll and Mr. Hyde in the Hulk's creation:
It was patently apparent that [the monstrous character the] Thing was the most popular character in [Marvel's recently created superhero team the] Fantastic Four. ... For a long time, I'd been aware of the fact that people were more likely to favor someone who was less than perfect. ... It's a safe bet that you remember Quasimodo, but how easily can you name any of the heroic, handsomer, more glamorous characters in The Hunchback of Notre Dame? And then there's Frankenstein ... I've always had a soft spot in my heart for the Frankenstein monster. No one could ever convince me that he was the bad guy. ... He never wanted to hurt anyone; he merely groped his torturous way through a second life trying to defend himself, trying to come to terms with those who sought to destroy him. ... I decided I might as well borrow from Dr. Jekyll and Mr. Hyde as well—our protagonist would constantly change from his normal identity to his superhuman alter ego and back again.
Kirby also stated the Frankenstein inspiration stating, "I did a story called "The Hulk"– a small feature, and it was quite different from the Hulk that we know. But I felt that the Hulk had possibilities, and I took this little character from the small feature and I transformed it into the Hulk that we know today.
Of course, I was experimenting with it. I thought the Hulk might be a good-looking Frankenstein. I felt there's a Frankenstein in all of us; I've seen it demonstrated. And I felt that the Hulk had the element of truth in it, and anything to me with the element of truth is valid and the reader relates to that. And if you dramatize it, the reader will enjoy it." Kirby also commented upon his influences in drawing the character, and recalled the inspiration of witnessing the hysterical strength of a mother lifting a car off her trapped child.
Lee has also compared Hulk to the golem of Jewish mythology. In The Science of Superheroes, Gresh and Weinberg see the Hulk as a reaction to the Cold War and the threat of nuclear attack, an interpretation shared by Weinstein in Up, Up and Oy Vey. This interpretation corresponds with other popularized fictional media created during this time period, which took advantage of the prevailing sense among Americans that nuclear power could produce monsters and mutants.
In the debut, Lee chose gray for the Hulk because he thought gray was a scary color and he wanted a color that did not suggest any particular ethnic group. Colorist Stan Goldberg, however, had problems with the gray coloring, resulting in different shades of gray, and even green, in the issue. After seeing the first published issue, Lee chose to change the skin color to green. Green was used in retellings of the origin, with even reprints of the original story being recolored for the next two decades, until The Incredible Hulk vol. 2, #302 (December 1984) reintroduced the gray Hulk in flashbacks set close to the origin story. An exception is the early trade paperback, Origins of Marvel Comics, from 1974, which explains the difficulties in keeping the gray color consistent in a Stan Lee-written prologue, and reprints the origin story keeping the gray coloration. Since December 1984, reprints of the first issue have displayed the original gray coloring, with the fictional canon specifying that the Hulk's skin had initially been gray.
Lee gave the Hulk's alter ego the alliterative name "Bruce Banner" because he found he had less difficulty remembering alliterative names. Despite this, in later stories he misremembered the character's name and referred to him as "Bob Banner", an error which readers quickly picked up on. The discrepancy was resolved by giving the character the official full name "Robert Bruce Banner".
The Hulk got his name from a comic book character named The Heap, who was a large green swamp monster.
The character first appeared in The Incredible Hulk #1 (cover dated May 1962), written by writer-editor Stan Lee, penciled and co-plotted by Jack Kirby, and inked by Paul Reinman. The series lasted six issues until March 1963. Lee had written each story, with Kirby penciling the first five issues and Steve Ditko penciling and inking the sixth. The character immediately guest-starred in The Fantastic Four #12 (March 1963). Months later, Hulk became a founding member of the superhero team the Avengers, appearing in the first two issues of the team's eponymous series (Sept. and Nov. 1963). José Alaniz argues that the most striking feature of these issues is "the Hulk's utter alienation." The character returned to Avengers as an antagonist in issue #3 and as an ally in #5 (Jan.–May 1964). He then guest-starred in Fantastic Four #25–26 (April–May 1964), which revealed Banner's full name as Robert Bruce Banner, and The Amazing Spider-Man #14 (July 1964).
Around this time, co-creator Kirby received a letter from a college dormitory stating the Hulk had been chosen as its official mascot. Kirby and Lee realized their character had found an audience in college-age readers.