| Title (Year(s) of Appearance) |
Role |
Character |
| The X-Files (1993-2002) Credited in 9 season(s) and an additional 73 episode(s) | Created By | |
 | The X-Files (09/10/1993) | Writer |
|
 | Season One (1993-1994) | Executive Producer |
|
 | Deep Throat (09/17/1993) | Writer |
|
 | The Jersey Devil (10/08/1993) | Writer |
|
 | Space (11/12/1993) | Writer |
|
 | Fire (12/17/1993) | Writer |
|
 | Young at Heart (02/11/1994) | Writer |
|
 | Miracle Man (03/18/1994) | Writer |
|
 | Darkness Falls (04/15/1994) | Writer |
|
 | The Erlenmeyer Flask (05/13/1994) | Writer |
|
 | Season Two (1994-1995) | Executive Producer |
|
 | The Host (09/23/1994) | Writer |
|
 | Duane Barry (Part 1/2) (10/14/1994) | Writer, Director |
|
 | Red Museum (12/09/1994) | Writer |
|
 | Irresistible (01/13/1995) | Writer |
|
 | Colony (Part 1/2) (02/10/1995) | Writer |
|
 | F. Emasculata (04/28/1995) | Writer |
|
 | Anasazi (Part 1/3) (05/19/1995) | Writer |
|
 | The Blessing Way (Part 2/3) (09/22/1995) | Writer |
|
 | Season Three (1995-1996) | Executive Producer |
|
 | Paper Clip (Part 3/3) (09/29/1995) | Writer |
|
 | The List (10/20/1995) | Writer, Director |
|
 | Nisei (Part 1/2) (11/24/1995) | Writer |
|
 | Syzygy (01/26/1996) | Writer |
|
 | Piper Maru (Part 1/2) (02/09/1996) | Writer |
|
 | Apocrypha (Part 2/2) (02/16/1996) | Writer |
|
 | Talitha Cumi (Part 1/2) (05/17/1996) | Writer |
|
 | Herrenvolk (Part 2/2) (10/04/1996) | Writer |
|
 | Season Four (1996-1997) | Executive Producer |
|
 | Tunguska (Part 1/2) (11/24/1996) | Writer |
|
 | Terma (Part 2/2) (12/01/1996) | Writer |
|
 | Memento Mori (02/09/1997) | Writer |
|
 | Unrequited (02/23/1997) | Writer |
|
 | Tempus Fugit (Part 1/2) (03/16/1997) | Writer |
|
 | Max (Part 2/2) (03/23/1997) | Writer |
|
 | Gethsemane (Part 1/3) (05/18/1997) | Writer |
|
 | Redux (Part 2/3) (11/02/1997) | Writer |
|
 | Season Five (1997-1998) | Executive Producer |
|
 | Redux II (Part 3/3) (11/09/1997) | Writer |
|
 | The Post-Modern Prometheus (11/30/1997) | Director, Writer |
|
 | Chinga (02/08/1998) | Writer |
|
 | Patient X (Part 1/2) (03/01/1998) | Writer |
|
 | The Red and the Black (Part 2/2) (03/08/1998) | Writer, Director |
|
 | The End (05/17/1998) | Writer |
|
 | The Beginning (11/08/1998) | Writer |
|
 | Season Six (1998-1999) | Executive Producer |
|
 | Triangle (11/22/1998) | Writer, Director |
|
 | How The Ghosts Stole Christmas (12/13/1998) | Director, Writer |
|
 | Two Fathers (Part 1/2) (02/07/1999) | Writer |
|
 | One Son (Part 2/2) (02/14/1999) | Writer |
|
 | Milagro (04/18/1999) | Writer |
|
 | Biogenesis (Part 1/3) (05/16/1999) | Writer |
|
 | The 6th Extinction (Part 2/3) (11/07/1999) | Writer |
|
 | Season Seven (1999-2000) | Executive Producer |
|
 | The 6th Extinction II: Armor Fati (11/14/1999) | Writer |
|
 | Sein und Zeit (Part 1/2) (02/06/2000) | Writer |
|
 | Closure (Part 2/2) (02/13/2000) | Writer |
|
 | First Person Shooter (02/27/2000) | Director |
|
 | Hollywood A.D. (04/30/2000) | Actor |
Cinema Audience |
 | Fight Club (05/07/2000) | Writer |
|
 | Requiem (05/21/2000) | Writer |
|
 | Season Eight (2000-2001) | Executive Producer |
|
 | Within (Part 1/2) (11/05/2000) | Writer |
|
 | Without (Part 1/2) (11/12/2000) | Writer |
|
 | Patience (11/19/2000) | Director, Writer |
|
 | Surekill (01/07/2001) | Writer |
|
 | Per Manum (02/18/2001) | Writer |
|
 | This Is Not Happening (Part 1/2) (02/25/2001) | Writer |
|
 | DeadAlive (Part 2/2) (04/01/2001) | Writer |
|
 | Three Words (04/08/2001) | Writer |
|
 | Essence (Part 1/2) (05/13/2001) | Writer |
|
 | Existence (Part 2/2) (05/20/2001) | Writer |
|
 | Season Nine (2001-2002) | Executive Producer |
|
 | Nothing Important Happened Today (Part 1/2) (11/11/2001) | Writer |
|
 | Nothing Important Happened Today II (Part 2/2) (11/18/2001) | Writer |
|
 | Trust No 1 (01/06/2002) | Writer |
|
 | Provenance (Part 1/2) (03/03/2002) | Writer |
|
 | Providence (Part 2/2) (03/10/2002) | Writer, Director |
|
 | Improbable (04/07/2002) | Writer, Director |
|
 | William (04/28/2002) | Writer |
|
 | The Truth (Part 1/2) (05/19/2002) | Writer |
|
 | The Truth (Part 2/2) (05/19/2002) | Writer |
|
| Millennium (1996-1999) Credited in 3 season(s) and an additional 7 episode(s) | Created By | |
 | Millennium (10/25/1996) | Writer |
|
 | Season One (1996-1997) | Executive Producer |
|
 | Gehenna (11/01/1996) | Writer |
|
 | The Well-Worn Lock (12/20/1996) | Writer |
|
 | Lamentation (Part 1/2) (04/18/1997) | Writer |
|
 | Season Two (1997-1998) | Executive Producer |
|
 | Season Three (1998-1999) | Executive Producer |
|
 | Taotwawki (10/16/1998) | Writer |
|
 | Antipas (02/12/1999) | Writer |
|
 | Seven and One (04/30/1999) | Writer |
|
| Harsh Realm (1999-2000) Credited in 1 season(s) and an additional 4 episode(s) | Created By | |
 | Season One (1999-2000) | Executive Producer |
|
 | Pilot (10/08/1999) | Writer |
|
 | Leviathan (10/15/1999) | Writer |
|
 | Inga Fossa (10/22/1999) | Writer |
|
 | Cincinnati (05/12/2000) | Writer |
|
| The Lone Gunmen (2001) Credited in 1 season(s) and an additional 1 episode(s) | Created By | |
 | Season One (2001-2001) | Executive Producer |
|
 | Three Men and a Smoking Diaper (03/23/2001) | Writer |
|