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2021LokiThanks · 5 episodesShow
2018She-Ra and the Princesses of PowerOriginal Series Creator · 52 episodesShow
2015Sense8Writer · 24 episodes · Executive Producer · 1 episode · CreatorShow
2013World War ZScreenstoryMovie
2012Underworld: AwakeningScreenplayMovie
2011ThorTownie · StoryMovie
2009Ninja AssassinWriterMovie
2008ChangelingWriterMovie
2007Babylon 5: The Lost Tales - Voices in the DarkDirector · Creator, Series Writer · Writer · Executive ProducerMovie
2002Babylon 5: The Legend of the Rangers - To Live and Die in StarlightWriter · Creator · Executive ProducerMovie
2002JeremiahWriter · 19 episodes · CreatorShow
2000Murder, She Wrote: A Story to Die ForWriter · ProducerMovie
1999CrusadeWriter · 10 episodes · Producer · 13 episodes · CreatorShow
1999Babylon 5: A Call to ArmsScreenplay · Executive ProducerMovie
1998Babylon 5: The River of SoulsScreenplay · Executive ProducerMovie
1998Babylon 5: ThirdspaceScreenplay · Executive ProducerMovie
1998Babylon 5: In the BeginningScreenplay · Executive ProducerMovie
1993Babylon 5: The GatheringScreenplay · Executive ProducerMovie
1993Walker, Texas RangerWriter · 1 episodeShow
1989The Strange Case of Dr. Jekyll and Mr. HydeTeleplayMovie
1987Jake and the FatmanWriter · 5 episodesShow
1987Spiral ZoneWriter · 1 episodeShow
1987Captain Power and the Soldiers of the FutureWriter · 10 episodesShow
1986The Real GhostbustersWriter · 22 episodesShow
1985The Twilight ZoneWriter, Story · 11 episodesShow
1985She-Ra: Princess of PowerWriter, Story, Teleplay · 7 episodesShow
1985Jayce and the Wheeled WarriorsCreatorShow
1985CBS StorybreakTeleplay · 1 episodeShow
1984Murder, She WroteWriter · 7 episodesShow
1983He-Man and the Masters of the UniverseWriter · 11 episodesShow