Joseph Michael Straczynski (born July 17, 1954), known professionally as J. Michael Straczynski and informally as Joe Straczynski or JMS, is an American writer and television producer. He works in films, television series, novels, short stories, comic books, and radio dramas. He is a playwright, a former journalist, and author of The Complete Book of Scriptwriting. He was the creator and showrunner for the science fiction TV series Babylon 5, and its spin-off Crusade, and Jeremiah. Straczynski wrote 92 out of the 110 Babylon 5 episodes, notably including an unbroken 59-episode run through the third and fourth seasons, and all but one episode of the fifth season. He also wrote the four Babylon 5 TV movies produced alongside the series. From 2001 to 2007, he was the writer for the long-running Marvel comic book series The Amazing Spider-Man.
Winner of the Inkpot, Eisner, Hugo, Saturn and Ray Bradbury Awards, J. Michael Straczynski wrote the wildly popular Superman: Earth One and Superman: Earth One Vol. 2 graphic novels, with volume three due in 2015. His current film credits include the story for the Thor movie (he also wrote the comic), the script for Underworld 4 (premiering this fall), and several new movie projects, including Shattered Union and Vanishing Point, both for Bruckheimer/Disney. He's also writing Samaritan X for DC and a webcomic, The Adventures of Apocalypse Al, for MTV.com.