Fox William Mulder (/ ˈmʌldər /) is a fictional FBI Special Agent and one of the two protagonists of the Fox science fiction- supernatural television series The X-Files, played by David Duchovny.

Fox William Mulder is one of the protagonists of The X-Files television series. A highly skilled yet unconventional FBI Agent, Mulder specializes in paranormal investigation, leading the X-Files …

The X-Files: Created by Chris Carter. With David Duchovny, Gillian Anderson, Mitch Pileggi, William B. Davis. Two F.B.I. Agents, Fox Mulder the believer and Dana Scully the skeptic, …

Fox William Mulder (/ ˈmʌldər /) is a fictional FBI Special Agent and one of the two protagonists of the Fox science fiction- supernatural television series The X-Files, played by David Duchovny.

The surname Mulder is also an occupational name of German origin, meaning "the maker of wooden bowls", from Middle High German mulde "bowl", "trough", or "tub" + the agent suffix -er.

34 likes, 1 comments - markdmulder on June 8, 2025: "I had such a great day of healing with my friend @rochellechansen at killen falls and crystal falls. Will miss her when she leaves.".

Fox Mulder is a fictional character and one of the main protagonists in the television series "The X-Files". The success of the series can be attributed in part to the brilliant performances of …

Mulder is a skilled criminal profiler, an ardent supernaturalist, and a conspiracy theorist who believes in the existence of the paranormal, whereas Scully is a medical doctor and skeptic …

Some fans speculate that Mulder may have overcome his phobia in the establishing episode, yet others believe that Mulder's fear remains but was just never dealt with.

Mulder: We've both lost so much... but I believe that what we're looking for is in the X-Files. I'm more certain than ever that the truth is in there. Scully: I've heard the truth, Mulder. Now what I …