The X-Files is a TV series that aired on Fox from September 10, 1993 to May 19, 2002 for nine seasons. A revival series aired from January 24, 2016 to March 21, 2018 for two seasons.
Guest Characters
Characters | From | Date | Episode | Crossover Type |
|---|---|---|---|---|
John Munch | November 16, 1997 | S05E01: “Unusual Suspects” | A | |
Frank Black, Jordan Black | November 28, 1999 | S07E04: “Millennium” | A | |
John Fitzgerald Byers, Melvin Frohike, Richard Langly, Jimmy Bond, Yves Del Harlow, Kimmy Belmont | April 21, 2002 | S09E15: “Jump the Shark” | A | |
John Fitzgerald Byers, Melvin Frohike, Richard Langly | February 15, 2016 | S10E05: “Babylon” | A | |
Richard Langly | January 10, 2018 | S11E02: “This” | A |
(Note: While they originate from The X-Files, I am listing appearances of the three Lone Gunmen that take place chronologically after their own spinoff show as “crossovers”.
The Lone Gunmen appearing in “Babylon” are a hallucination.
Richard Langly in “This” is an AI simulation.
The Picket Fences episode “Away in a Manger” was initially supposed to be a direct X-Files crossover, but it was nixed by the networks. Despite not being able to directly crossover, the two shows wrote the episodes with similar premises anyway. In the aired version, specific plot points and characters from the X-Files episode “Red Museum” are still mentioned in “Away in a Manager”, despite not being able to say the names of “Mulder” or “Scully” directly. They are likely the same universe but there are no character appearance crossovers.
The episode “X-Cops” was presented as an episode of the reality show Cops.
A vision of the family from The Brady Bunch appears in the episode “Sunshine Days”, but none are played by the original actors.)
Outgoing Crossovers
Characters | Guest On | Date | Episode | Crossover Type |
|---|---|---|---|---|
José Chung | November 21, 1997 | S02E09: “José Chung's Doomsday Defense” | A | |
Walter Skinner | May 17, 2001 | S01E11: "The Lying Game” | A | |
Fox Mulder, Morris Fletcher | May 11, 2001 | S01E13: “All About Yves” | A |
(Note: Images of David Duchovny as Mulder are used in “José Chung's Doomsday Defense” for fictional actor Bobby Wingwood.
A suspiciously X-Files like show is being filmed in the Millennium episode “Somehow, Satan Got Behind Me” with lookalikes of David Duchovny and Gillian Anderson.)
Spinoffs & Outgoing Cast
Characters | New Show | Date | Episode |
|---|---|---|---|
John Fitzgerald Byers, Melvin Frohike, Richard Langly | March 4, 2001 | S01E01: “Pilot” |
Cartoon Crossovers & Follow Ups
David Duchovny and Gillian Anderson appear as Fox Mulder and Dana Scully in an episode of The Simpsons called “The Springfield Files”. The Cigarette Smoking Man also appears in this episode, although he is not voiced.
Duchovny and Anderson also voice Mulder and Scully in an episode of Eek the Cat called “Eek Space-9”.
Gillian Anderson voices Scully parody “Data Nully” in the ReBoot episode “Trust No One”.
Feature Film Crossovers:
The X-Files had two theatrical films: The first, called The X-Files (also known as The X-Files: Fight the Future) was released on June 19, 1998. The second called The X-Files: I Want to Believe was released on July 25, 2008.
In I Want to Believe, Sarah-Jane Redmond plays a character called “Special Agent in Charge Fossa”, the same surname as her character “Inga Fossa” from Chris Carter’s Harsh Realm. This may be simply a reference, but it does not seem contradictory from a plot perspective for them to be the same character.