Question: which American-British film actress was one of the main actress in The X-Files

full_context: Document 1: The Springfield Files: "The Springfield Files" is the tenth episode of "The Simpsons"<nowiki>'</nowiki> eighth season. It originally aired on the Fox network in the United States on January 12, 1997. In the episode, Homer believes he has discovered an alien in Springfield. It was written by Reid Harrison and directed by Steven Dean Moore. Leonard Nimoy guest stars as himself and David Duchovny and Gillian Anderson guest star as agents Fox Mulder and Dana Scully, their characters on "The X-Files". The episode serves as a crossover with "The X-Files" and features numerous references to the series. The story came from former showrunners Al Jean and Mike Reiss, who returned to produce this episode while under contract with Disney. It received mostly positive reviews from critics; Jean and Reiss won an Annie Award for producing it.
Document 2: List of The Fall episodes: "The Fall" is a British-Irish crime drama television series filmed and set in Northern Ireland. The series is produced by Artists Studio and created by Allan Cubitt. It premiered in the Republic of Ireland on RTÉ at 9:30 pm on 12 May 2013, and in the United Kingdom on BBC Two at 9:00 pm on 13 May 2013. The series stars Gillian Anderson as DSI Stella Gibson, a senior Metropolitan Police Detective and Jamie Dornan as serial killer Paul Spector.
Document 3: Claire Danes: Claire Catherine Danes (born April 12, 1979) is an American actress. She is the recipient of three Emmy Awards, four Golden Globe Awards, and two Screen Actors Guild Awards. In 2012, "Time" named her one of the 100 most influential people in the world, and she was awarded a star on the Hollywood Walk of Fame in 2015.
Document 4: Annabeth Gish: Annabeth Gish (born March 13, 1971) is an American actress. She has played roles in films "Shag", "Hiding Out", "Mystic Pizza", "SLC Punk!", "The Last Supper" and "Double Jeopardy". On television, she played Special Agent Monica Reyes on "The X-Files", Elizabeth Bartlet Westin on "The West Wing", Eileen Caffee on "Brotherhood", Charlotte Millwright on "The Bridge" and Sheriff Althea Jarry on the final season of "Sons of Anarchy".
Document 5: The X-Files sources and analogues: The American media franchise, "The X-Files", created by Chris Carter uses inspirations and sources from other fictional media as well as many real-life paranormal cases that have been alleged/documented, though not necessarily proven to be true. The show's creator Chris Carter stated: "Many of our ideas spring from actual accounts, essays, pieces in journals that we expand by posting "what if".
Document 6: Without (The X-Files): "Without" is the second episode of the eighth season of the science fiction television series "The X-Files". The episode first aired in the United States and Canada on November 12, 2000 on Fox and subsequently aired in the United Kingdom on February 18, 2001. It was written by executive producer Chris Carter and directed by Kim Manners. The episode helps to explore the series' overarching mythology and continues from the seventh season finale, "Requiem", and season eight premiere, "Within", in which Fox Mulder was abducted by aliens who are planning to colonize Earth. The episode earned a Nielsen rating of 9.0 in the United States and was seen by 15.1 million viewers. As with the previous episode, "Within," it was generally well received by critics, although some detractors criticized various plot points.
Document 7: The Fall (TV series): The Fall is a British-Irish crime drama television series filmed and set in Northern Ireland. The series is created and written by Allan Cubitt, produced by Artists Studio, and shown on RTÉ One in the Republic of Ireland and BBC Two in the UK. It stars Gillian Anderson as DSI Stella Gibson and Jamie Dornan as serial killer Paul Spector.
Document 8: Gillian Anderson: Gillian Leigh Anderson, {'1': ", '2': ", '3': ", '4': "} (born August 9, 1968) is an American-British film, television and theatre actress, activist and writer. Her credits include the roles of FBI Special Agent Dana Scully in the long-running and widely popular series "The X-Files", ill-fated socialite Lily Bart in Terence Davies' film "The House of Mirth" (2000), and DSI Stella Gibson on the BBC crime drama television series "The Fall". Among other honours, Anderson has won a Primetime Emmy Award, a Golden Globe Award and two Screen Actors Guild Awards.
Document 9: Helen Mirren: Dame Helen Lydia Mirren, {'1': ", '2': ", '3': ", '4': "} ("née" Mironoff; born 26 July 1945) is an English actor. Mirren began her acting career with the Royal Shakespeare Company in 1967, and is one of the few performers who have achieved the Triple Crown of Acting, having won the Academy Award for Best Actress in 2007, after two previous nominations, for her performance as Queen Elizabeth II in "The Queen". She received an Olivier Award for Best Actress in 2013 for her West End performance in "The Audience", in which she also portrayed Elizabeth II, and in 2015 she won the Tony Award for Best Actress in a Play for her Broadway performance in the play. "The Audience" was written by Peter Morgan, who also wrote "The Queen". Mirren won three consecutive BAFTA Awards for Best Actress between 1992 and 1994 and her first of several Emmy Awards in 1996 for her performance as police detective Jane Tennison on the British television series "Prime Suspect", which ran for seven seasons between 1991 and 2006.
Document 10: Chris Carter (screenwriter): Christopher Carl Carter (born October 13, 1956) is an American television and film producer, director and writer. Born in Bellflower, California, Carter graduated with a degree in journalism from California State University, Long Beach before spending thirteen years working for "Surfing Magazine". After beginning his television career working on television films for Walt Disney Studios, Carter rose to fame in the early 1990s after creating the science fiction-supernatural television series "The X-Files" for the Fox network. "The X-Files" earned high viewership ratings, and led to Carter's being able to negotiate the creation of future series.
Document 11: The X-Files (film): The X-Files (also known as The X-Files: Fight the Future) is a 1998 American science fiction thriller film directed by Rob Bowman. Chris Carter wrote the screenplay. The story is by Carter and Frank Spotnitz. It is the first feature film based on Carter's television series "The X-Files, " which revolves around fictional unsolved cases called the X-Files and the characters solving them. Five main characters from the television series appear in the film: David Duchovny, Gillian Anderson, Mitch Pileggi, John Neville, and William B. Davis reprise their respective roles as FBI agents Fox Mulder and Dana Scully, FBI Assistant Director Walter Skinner, Well-Manicured Man, and the Cigarette-Smoking Man. The film was promoted with the tagline "Fight the Future".
Document 12: Mulder and Scully (song): "Mulder and Scully" is a song by Catatonia, released as a single from their 1998 album, "International Velvet". The song makes direct reference to fictional FBI special agents Fox Mulder (David Duchovny) and Dana Scully (Gillian Anderson), the two main characters of the popular sci-fi TV series "The X-Files" who work on cases linked to the paranormal, called X-Files. In an interview Cerys Matthews, co-writer of the song, explained that while she was not a serious fan of the show, the basic premise of the series matched the conceit of what she was trying to express.
Document 13: The X-Files: I Want to Believe: The X-Files: I Want to Believe is a 2008 American supernatural thriller film directed by Chris Carter and written by both Carter and Frank Spotnitz. It is the second feature film installment of "The X-Files" franchise created by Carter, following the 1998 film. Three main actors from the television series, David Duchovny, Gillian Anderson, and Mitch Pileggi, reappear in the film to reprise their respective roles as Fox Mulder, Dana Scully, and Walter Skinner.
Document 14: The House of Mirth (2000 film): The House of Mirth is a 2000 drama film written and directed by Terence Davies. An adaptation of Edith Wharton's 1905 novel "The House of Mirth", the film stars Gillian Anderson. It is an international co-production between the United Kingdom, Germany, and United States. The film has an 81% approval rating on Rotten Tomatoes, which called it "chilling and relevant" in its critical consensus.
Document 15: Mitch Pileggi: Mitchell Craig "Mitch" Pileggi (born April 5, 1952) is an American actor, best known for his role as Walter Skinner on "The X-Files". He also had a recurring role on "Stargate Atlantis" as Colonel Steven Caldwell. He appeared in the 2008 film "Flash of Genius". In 2008, he began a recurring role as Ernest Darby in "Sons of Anarchy". He starred as Harris Ryland in the TNT revival of "Dallas" (2012–2014).
ground_truth: Gillian Leigh Anderson