.jpg?width=400)
American comics writer and editor. He began at Valiant Comics in 1992, moved to DC in 1997 as an editor, working on Vertigo titles including Transmetropolitan and Hellblazer, and then turned to writing. For CrossGen he co-created Negation and wrote Route 666; for Marvel he wrote the whole of Exiles between 2004 and 2006; for DC, Birds of Prey, Supergirl, and — through the New 52 relaunch of 2011 — Blue Beetle and Green Lantern: New Guardians. Since 2017 he has written for video games at Treyarch.