Overview
The Heckler is a parody superhero appearing in media published by DC Comics. He first appeared in The Heckler #1 (cover-dated September 1992), the first of an ongoing series that ended with The Heckler #6 (cover-dated February 1993).
Publication history
Keith Giffen created the Heckler as "a superhero Bugs Bunny" because he wanted to work with Bugs Bunny but felt that DC Comics (who were publishing Bugs Bunny's comics at the time) would not have approved of his handling of the character. Tom and Mary Bierbaum, who had previously worked with Giffen on Legion of Super-Heroes, scripted the series over his plots and pencils for its entire run.
Though the Heckler's costume is covered with "Ha ha"s, Giffen told the Bierbaums that the Heckler must never laugh in this manner, since the "Ha ha" laugh was a signature aspect of the Creeper.
Though The Heckler #7 appeared in solicitations, no work was ever done on it beyond the plot and cover art. Humor comics were at the low point of their popularity, and after learning that sales on the series were "plummeting", Giffen approached DC and asked them to cancel The Heckler and leave #6 as the final issue.
From Wikipedia (CC BY-SA 4.0).