the black oil; this vaccine is revealed in the latter parts of season five, as well as the 1998 film. Counter to the alien colonization effort, another faction of aliens, the faceless rebels, are working to stop alien colonization. Eventually, in the season six episodes "Two Fathers"/"One Son", the rebels manage to destroy the Syndicate. The colonists, now without human liaisons, dispatch the "Super Soldiers": beings that resemble humans, but are biologically alien. In the latter parts of season eight, and the whole of season nine, the Super Soldiers manage to replace key individuals in the government, forcing Mulder and Scully to go into hiding. Cast and characters Starring Fox Mulder is portrayed by David Duchovny:Mulder is an Oxford-educated FBI special agent who believes in the existence of extraterrestrials and a government conspiracy to hide the truth regarding them. He works in the X-Files office, which is concerned with cases marked as unsolvable; most involve supernatural/mysterious circumstances. Mulder considers the X-Files so important that he has made their study his life's main purpose. After his abduction by aliens at the end of season seven, his role in the show diminishes and much of his work is taken on by Agent John Doggett. He appears in an episode of The Lone Gunmen and in both the 1998 film The X-Files and the 2008 film The X-Files: I Want to Believe. Dana Scully is portrayed by Gillian Anderson:Scully is an FBI special agent, a medical doctor, and scientist who is Mulder's partner. In contrast to his credulity, Scully is a skeptic, basing her beliefs on scientific explanations. However, despite her otherwise rigid skepticism, she is a Catholic, and her faith plays an important role in several episodes. As the series progresses, she becomes more open to the possibility of paranormal happenings. In the latter part of the eighth season, her position in the X-Files office is taken by Agent Monica Reyes, and Scully moves to Quantico to teach new FBI agents. She appears in both The X-Files feature films. John Doggett is portrayed by Robert Patrick (seasons 8–9):Doggett is an FBI special agent who makes his first appearance in the season eight episode "Within". Doggett served in the United States Marine Corps from the 1970s to the 1980s. Later, he started to work with the New York City Police Department, reaching the rank of detective. After his son's death, he joined the