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J.M. DeMatteis is an American screenwriter and comic book writer, and musician. He is known for his runs on Justice League of America, Justice League International, and The Amazing Spider-Man. He's also written episodes of Ben 10: Ultimate Alien (starring Yuri Lowenthal) and Batman: The Brave and the Bold (starring Diedrich Bader), and the direct-to-video film, Batman vs. Robin.
- Be Cool, Scooby-Doo!
- Scooby Apocalypse - writer