J.M. DeMatteis

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Known For

Credits

Cast Credits

Batman: The Brave and the Bold (2008)
Guest starring as Tora Olafsdottir / Ice (2 episodes)
Justice League Unlimited (2004)
Guest starring as Maxwell Lord
  • Episode 1x09: Ultimatum (Dec 4, 2004) [Uncredited]
Guest starring as Tora Olafsdottir / Ice (2 episodes)
Guest starring as Cary Richards / Adversary

Crew Credits

Constantine: City of Demons (2018)
Show crew as Creator
Episode crew as Writer (5 episodes)
Be Cool, Scooby-Doo! (2015)
Episode crew as Teleplay
Batman: The Brave and the Bold (2008)
Episode crew as Writer (8 episodes)
Legion of Super Heroes (2006)
Episode crew as Writer (4 episodes)
Justice League Unlimited (2004)
Episode crew as Writer (2 episodes)
Episode crew as Teleplay (5 episodes)
Earth: Final Conflict (1997)
Episode crew as Writer
Episode crew as Story
Episode crew as Teleplay