★ 8.2 
Writing
Greg Walker
Greg Walker is best known for Smallville, The X-Files, Titans and Extant.
Biography
Greg Walker is a producer and writer.
Known for
Filmography
- 2018TitansWriter
- 2014ExtantWriter
- 2012VegasWriter
- 2009Three RiversWriter
- 2002Without a TraceWriter
- 2001SmallvilleWriter
- 1999Harsh RealmWriter
- 1998L.A. DoctorsWriter
- 1993The X-FilesWriter
Frequently asked questions
What movies and shows has Greg Walker been in?
Greg Walker is best known for Smallville, The X-Files, Titans and Extant.
Updated: October 25, 2026 ·