with Fox Mulder on the X-files, cases that involved paranormal or unexplained phenomena. Blevins believed that Scully would help provide a more scientific analysis of the X-files cases. The following year, Blevins recommended that Mulder be removed from the X-files due to Mulder's personal agenda regarding the cases. Later that year, Section Chief Joseph McGrath went over Blevins's head in an attempt to order a shut down of the X-files. Mulder and Scully would be later placed under the supervision of Assistant Director Walter Skinner, and Blevins would be placed in the position of Section Chief. In 1997, Blevins led a joint FBI committee that was investigating the legitimacy of Mulder's work on the X-files and his apparent suicide. After Mulder was discovered alive, he testified before the committee naming Blevins as the FBI mole responsible for giving Special Agent Scully cancer and working with the government conspiracy. Blevins was subsequently killed by another member of the committee who made his death appear to be a suicide. Dr. Charles (Chuck) Burks Dr. Charles Burks is portrayed by Bill Dow, and appeared in a total of six episodes between 1995 and 2001. First appearing in "The Calusari" as a digital photo expert and using the nickname Chuck, Dr. Burks was occasionally returned to as an open-minded expert more in line with Mulder's belief in the paranormal than Scully's skepticism. His contributions to X-Files investigations include aura photography and sonic analysis, however he also delved into languages and mysticism (in the episode "Badlaa", in which he is introduced to John Doggett as an old friend of Fox Mulder's). Luis Cardinal Luis Cardinal is portrayed by Lenno Britos who appeared in a total of four episodes. Cardinal was a Nicaraguan mercenary working for the Cigarette Smoking Man, briefly partnered with Alex Krycek, at which time he killed Dana Scully's sister, Melissa Scully, in a case of mistaken identity. He also shot Assistant Director Walter Skinner, who had survived. He was later taken into custody by the Washington, D.C. Police Department, and was then eliminated in prison to be silenced. Arthur Dales Arthur Dales, portrayed by Darren McGavin in present-day scenes and Fredric Lehne in flashbacks, is a retired FBI agent. In 1952, while Dales investigated suspected communist spies for the House Un-American Activities Committee, he dealt with Edward Skur, a suspected Communist who had an alien spider living symbiotically inside him. He later