Peter Allen David (born September 23, 1956), often abbreviated PAD, is an American writer of comic books, novels, television, films and video games. His notable comic book work includes an award-winning 12-year run on The Incredible Hulk, as well as runs on Aquaman, Young Justice, Supergirl, Fallen Angel, Spider-Man, Spider-Man 2099, and X-Factor. His Star Trek work includes comic books, novels such as Imzadi, and co-creation of the New Frontier series. His other novels include film adaptations, media tie-ins, and original works, such as the Apropos of Nothing and Knight Life series. His television work includes series such as Babylon 5, Young Justice, Ben 10: Alien Force[5] and Nickelodeon's Space Cases, which he co-created with Bill Mumy.