The X Files
- Blwyddyn: 1998
- Gwlad: United States of America, Canada
- Genre: Mystery, Science Fiction, Thriller
- Stiwdio: Ten Thirteen Productions, 20th Century Fox
- Allweddair: helicopter, space marine, government, bomb, mutation, extraterrestrial technology, obsession, fbi, secret society, secret organization, secret lab, x-files, ufo, conspiracy, ovine
- Cyfarwyddwr: Rob Bowman
- Cast: David Duchovny, Gillian Anderson, Mitch Pileggi, William B. Davis, John Neville, Martin Landau