| Title (Year(s) of Appearance) |
Role |
Character |
| The X-Files (1995-2002) Credited in 6 season(s) and an additional 48 episode(s) | | |
 | End Game (Part 2/2) (02/17/1995) | Writer |
|
| Our Town (05/12/1995) | Writer |
|
| Nisei (Part 1/2) (11/24/1995) | Writer |
|
| 731 (Part 2/2) (12/01/1995) | Writer |
|
| Piper Maru (Part 1/2) (02/09/1996) | Writer |
|
| Apocrypha (Part 2/2) (02/16/1996) | Writer |
|
| Season Four (1996-1997) | Producer |
|
| Tunguska (Part 1/2) (11/24/1996) | Writer |
|
| Terma (Part 2/2) (12/01/1996) | Writer |
|
| Leonard Betts (01/26/1997) | Writer |
|
| Memento Mori (02/09/1997) | Writer |
|
| Tempus Fugit (Part 1/2) (03/16/1997) | Writer |
|
| Max (Part 2/2) (03/23/1997) | Writer |
|
| Zero Sum (04/27/1997) | Writer |
|
| Season Five (1997-1998) | Executive Producer |
|
| Detour (11/23/1997) | Writer |
|
| Christmas Carol (Part 1/2) (12/07/1997) | Writer |
|
| Emily (Part 2/2) (12/14/1997) | Writer |
|
| Patient X (Part 1/2) (03/01/1998) | Writer |
|
| The Red and the Black (Part 2/2) (03/08/1998) | Writer |
|
| Travelers (03/29/1998) | Writer |
|
| All Souls (04/26/1998) | Writer |
|
| Season Six (1998-1999) | Executive Producer |
|
| Dreamland (Part 1/2) (11/29/1998) | Writer |
|
| Dreamland II (Part 2/2) (12/06/1998) | Writer |
|
| Two Fathers (Part 1/2) (02/07/1999) | Writer |
|
| One Son (Part 2/2) (02/14/1999) | Writer |
|
| Milagro (04/18/1999) | Writer |
|
| Field Trip (05/09/1999) | Writer |
|
| Biogenesis (Part 1/3) (05/16/1999) | Writer |
|
| Season Seven (1999-2000) | Executive Producer |
|
| Millennium (11/28/1999) | Writer |
|
| The Amazing Maleeni (01/16/2000) | Writer |
|
| Sein und Zeit (Part 1/2) (02/06/2000) | Writer |
|
| Closure (Part 2/2) (02/13/2000) | Writer |
|
| Theef (03/12/2000) | Writer |
|
| Season Eight (2000-2001) | Executive Producer |
|
| Via Negativa (12/17/2000) | Writer |
|
| The Gift (02/04/2001) | Writer |
|
| Medusa (02/11/2001) | 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 |
|
| Alone (05/06/2001) | Director, 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 |
|
| Dæmonicus (12/02/2001) | Director, Writer |
|
| Trust No 1 (01/06/2002) | Writer |
|
| Provenance (Part 1/2) (03/03/2002) | Writer |
|
| Providence (Part 2/2) (03/10/2002) | Writer |
|
| Jump the Shark (04/21/2002) | Writer |
|
| William (04/28/2002) | Writer |
|
| Millennium (1997-1999) Credited in 3 season(s) and an additional 5 episode(s) | | |
| Season One (1996-1997) | Producer |
|
| Weeds (01/24/1997) | Writer |
|
| Sacrament (02/21/1997) | 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 (2000) Credited in 1 season(s) and an additional 1 episode(s) | | |
| Season One (1999-2000) | Executive Producer |
|
| Three Percenters (04/28/2000) | Writer |
|
| The Lone Gunmen (2001) Credited in 1 season(s) and an additional 5 episode(s) | Created By | |
| Season One (2001-2001) | Executive Producer |
|
| Pilot (03/04/2001) | Writer |
|
| Bond, Jimmy Bond (03/11/2001) | Writer |
|
| Maximum Byers (04/13/2001) | Writer |
|
| All About Yves (05/11/2001) | Writer |
|
| The Cap'n Toby Show (06/01/2001) | Writer |
|
