Fox Mulder

Fox Mulder
The X-Files character
First appearance
"Pilot"
(September 10, 1993)
Last appearance
"My Struggle IV" (March 21, 2018)
Portrayed byDavid Duchovny
City
Washington, D.C.
Born
Fox William Mulder
In-universe information
Full nameFox William Mulder
SpeciesHuman, Male
OccupationFBI Special Agent
Family
OriginX-Files
Spouse
Dana Scully
Affiliations
John Doggett
Monica Reyes
Walter Skinner
The Lone Gunmen
Duration
1993–2002, 2008, 2016–2018
Seasons
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11
Films
The X-Files, The X-Files: I Want to Believe

Fox William Mulder (/ˈmʌldər/) is one of the two protagonists of the Fox science fiction-supernatural television series The X-Files. The character, played by David Duchovny, works with Dana Scully as Special Agents in the FBI's X-Files office, concerned with unsolved criminal cases that are often revealed to be supernatural or extraterrestrial in nature.

Mulder made his first appearance in the first season pilot episode, broadcast in 1993. He was a main character for the first seven seasons, but was then limited to a recurring character for the following two seasons. Mulder returned as a main character for the tenth and eleventh seasons.

Mulder's main focus of his life is finding proof of extraterrestrial or paranormal activity, and uncovering a government conspiracy to hide or deny the truth of their existence. Most of his peers dismiss him as a conspiracy theorist and supernaturalist. However, his partner Scully, skeptical but supportive, often finds his theories to be unexpectedly correct.