Outside of Star Wars, particularly at Marvel Comics, he has written for The Incredible Hulk, Spider-Man, Spider-Man 2099, X-Factor, Fantastic Four, Captain Marvel, Scarlet Spider, and their adaptation of Stephen King's The Dark Tower, as well as Halo: Helljumper and their 2011 video game Spider-Man: Edge of Time. At DC Comics, he has written for Aquaman, Young Justice, Supergirl, and Fallen Angel, as well as a few episodes of Cartoon Network's Young Justice cartoon adaptation. He also wrote for other TV shows and video games, namely Babylon 5, Ben 10: Alien Force, in addition to co-creating the sci-fi sitcom Space Cases for Nickelodeon.