Alan Kupperberg is an American comics artist. Most of Kupperberg's work has been for Marvel Comics, on books like Invaders, Avengers, and What If?. He also wrote, drew, inked and lettered infamous one-shot Obnoxio the Clown vs. the X-Men for them. He also did extensive work for short-lived '70s publisher Atlas Comics, and drew Justice League of America and Blue Devil for DC.
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