On the sci-fi series The X-Files, FBI agents Fox Mulder (David Duchovny), a believer in the paranormal, and Dana Scully (Gillian Anderson), a skeptic scientist assigned to debunk Mulder’s work, made up the FBI’s most unwanted, as Mulder so eloquently put it, and investigated cases with no obvious rational explanation. The show premiered in 1993, and its original run lasted until 2002, totaling just over 200 episodes and making it one of the longest-running sci-fi shows in TV history. Its success led to two films—The X-Files: Fight the Future, released during the show’s run, and The X-Files: I Want to Believe, released in 2008, as well as a brief revival in 2016, which lasted two seasons. The series was created by Chris Carter.