| Year | Title | Season | Episode | Episodetitle | Director | Writer | Notes |
| 1995 | The X-Files | 2 | 23 | "Soft Light" | No | Yes | |
| 1996 | 3 | 17 | "Pusher" | No | Yes | |
| 4 | 4 | "Unruhe" | No | Yes | |
| 10 | "Paper Hearts" | No | Yes | |
| 1997 | 12 | "Leonard Betts" | No | Yes | Co-written with John Shiban and Frank Spotnitz |
| 14 | "Memento Mori" | No | Yes | Co-written with Chris Carter, Frank Spotnitz and John Shiban |
| 20 | "Small Potatoes" | No | Yes | |
| 5 | 3 | "Unusual Suspects" | No | Yes | |
| 6 | "Christmas Carol" | No | Yes | Co-written with John Shiban and Frank Spotnitz |
| 7 | "Emily" | No | Yes | Co-written with John Shiban and Frank Spotnitz |
| 1998 | 8 | "Kitsunegari" | No | Yes | Co-written with Tim Minear |
| 12 | "Bad Blood" | No | Yes | |
| 19 | "Folie a Deux" | No | Yes | |
| 6 | 2 | "Drive" | No | Yes | |
| 4 | "Dreamland" | No | Yes | Co-written with John Shiban and Frank Spotnitz |
| 5 | "Dreamland II" | No | Yes | Co-written with John Shiban and Frank Spotnitz |
| 1999 | 10 | "Tithonus" | No | Yes | |
| 14 | "Monday" | No | Yes | Co-written with John Shiban |
| 20 | "Three of a Kind" | No | Yes | Co-written with John Shiban |
| 21 | "Field Trip" | No | Yes | Teleplay co-written with John Shiban (story by Frank Spotnitz) |
| 7 | 3 | "Hungry" | No | Yes | |
| 4 | "Millennium" | No | Yes | Co-written with Frank Spotnitz |
| 2000 | 8 | "The Amazing Maleeni" | No | Yes | Co-written with John Shiban and Frank Spotnitz |
| 12 | "X-Cops" | No | Yes | |
| 14 | "Theef" | No | Yes | Co-written with John Shiban and Frank Spotnitz |
| 21 | "Je Souhaite" | Yes | Yes | |
| 8 | 4 | "Roadrunners" | No | Yes | |
| 2001 | The Lone Gunmen | 1 | 1 | "Pilot" | No | Yes | Co-written with Chris Carter, John Shiban and Frank Spotnitz |
| 2 | "Bond, Jimmy Bond" | No | Yes | Co-written with John Shiban and Frank Spotnitz |
| 7 | "Planet of the Frohikes" | No | Yes | |
| 8 | "Maximum Byers" | No | Yes | Co-written with Frank Spotnitz |
| 12 | "The Cap'n Toby Show" | No | Yes | Co-written with John Shiban and Frank Spotnitz |
| 13 | "All About Yves" | No | Yes | Co-written with John Shiban and Frank Spotnitz |
| 2002 | The X-Files | 9 | 7 | "John Doe" | No | Yes | |
| 15 | "Jump the Shark" | No | Yes | Co-written with John Shiban and Frank Spotnitz |
| 18 | "Sunshine Days" | Yes | Yes | |
| Robbery Homicide Division | 1 | 4 | "Free and Clear" | No | Yes | |
| 2005 | Night Stalker | 1 | 10 | "What's the Frequency, Kolchak?" | No | Yes | |
| 2007 | A.M.P.E.D. | Pilot | No | Yes | Unaired; Co-written with Frank Spotnitz |
| 2008 | Breaking Bad | 1 | 1 | "Pilot" | Yes | Yes | |
| 2 | "Cat's in the Bag..." | No | Yes | |
| 3 | "...And the Bag's in the River" | No | Yes | |
| 4 | "Cancer Man" | No | Yes | |
| 2009 | 2 | 6 | "Peekaboo" | No | Yes | Co-written with J. Roberts |
| 13 | "ABQ" | No | Yes | |
| 2010 | 3 | 1 | "No Más" | No | Yes | |
| 13 | "Full Measure" | Yes | Yes | |
| 2011 | 4 | 1 | "Box Cutter" | No | Yes | |
| 12 | "End Times" | Yes | No | |
