Biography
Greg Walker is a television writer and producer. He began working in television as a story editor on L.A. Doctors (1998) and Harsh Realm (1999–2000). On The X-Files (1993) he served as story editor and executive story editor from 2000 to 2001, contributing to episodes including "Brand X" and "Surekill".
Walker wrote episodes of Smallville (2001), where he was also co-producer. He wrote for and produced Without a Trace (2002–2009), created and wrote for Vegas (2012), and wrote for Extant (2014). He later worked on Titans (2018) as writer, director and showrunner. He is married to screenwriter Michelle Ashford.
