The Hulk's original series was canceled with issue #6 (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), and months later 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), and returning 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).