Question: In what sitcom did Karen Walker was a fictional character of?

full_context: Document 1: Michelle McNulty: Michelle McNulty (born 1972), a former Las Vegas, Nevada review dancer, is today a 67th (2015) and 68th (2016) Emmy Awards winning producer of "The Voice". She was formerly the series’ 2013 Emmy Award winning casting director. She shared the 2015 and 2016 primetime Emmys for Outstanding Reality Competition Program with other production staff of "The Voice".
Document 2: The Megan Mullally Show: The Megan Mullally Show is an American talk show hosted by Megan Mullally that debuted in syndication on September 18, 2006, and was cancelled in January 2007 due to its low ratings. Early promotions for the program featured Mullally as herself and as her "Will & Grace" character, Karen Walker. The talk show also aired nationally on TBS and was distributed by NBCUniversal Television Distribution.
Document 3: Will &amp; Grace: Will & Grace is an American sitcom created by Max Mutchnick and David Kohan. Set in New York City, the show focuses on the relationship between best friends Will Truman (Eric McCormack), a gay lawyer, and Grace Adler (Debra Messing), a straight interior designer. The show was broadcast on NBC from September 21, 1998 to May 18, 2006, for a total of eight seasons, and re-started its run on NBC on September 28, 2017. During its original run, "Will & Grace" was one of the most successful television series with gay principal characters.
Document 4: Nora Walker: Nora Maureen Walker is a fictional character on the ABC television series "Brothers & Sisters". She is portrayed by veteran actress Sally Field. Nora is the main character of the series. Field was one of the two characters to appear in all the episodes of the series. She was listed in the Top 10 TV Moms by Film.com. Field won the Primetime Emmy Award for Outstanding Lead Actress - Drama Series for her portrayal, as well as a Screen Actors Guild Award for Outstanding Performance by a Female Actor in a Drama Series, nominated for two other Emmys, and nominated for three Golden Globes.
Document 5: Carol Kane: Carolyn Laurie Kane (born June 18, 1952) is an American stage, screen and television actress and comedian. She became known in the 1970s in films such as "Hester Street" (for which she received an Academy Award nomination) and "Annie Hall". She appeared on the television series "Taxi" in the early 1980s, as the wife of Latka, the character played by Andy Kaufman, winning two Emmy Awards for her work. She has played the character of Madame Morrible in the musical "Wicked", both in regional productions and on Broadway from 2005 to 2014. Since 2015, she has been a main cast member on the Netflix original series "Unbreakable Kimmy Schmidt", in which she plays Lillian Kaushtupper.
Document 6: Meg Ryan: Meg Ryan (born Margaret Mary Emily Anne Hyra; November 19, 1961) is an American actress, director, and producer. Ryan began her acting career in 1981 in minor roles, before joining the cast of the CBS soap opera "As the World Turns" in 1982. Subsequently, she began to appear in supporting roles in films during the mid-1980s, achieving recognition in independent movies such as "Promised Land" (1988) before her performance in the Rob Reiner-directed romantic comedy "When Harry Met Sally..." (1989) brought her widespread attention and her first Golden Globe nomination.
Document 7: Jane Krakowski: Jane Krakowski ( ; born Jane Krajkowski; October 11, 1968) is an American actress and singer. She is best known for her role as Jenna Maroney in the NBC comedy series "30 Rock", for which she received four Primetime Emmy Award nominations for Outstanding Supporting Actress in a Comedy Series. Other notable television credits include Elaine Vassal on "Ally McBeal" and Jacqueline White in the Netflix original comedy series "Unbreakable Kimmy Schmidt".
Document 8: Karen MacKenzie: Karen MacKenzie (maiden name Cooper; formerly Fairgate) is a long-running fictional character in the CBS primetime soap opera "Knots Landing". Karen is portrayed by actress Michele Lee, and has appeared on the show since its pilot episode, first broadcast on December 27, 1979. "Knots Landing" follows the trials of four middle-class families living on a suburban cul-de-sac known as Seaview Circle in California. Lee portrayed Karen for the entire run of "Knots Landing", being the sole cast member to appear in every episode of its fourteen seasons. At the time, her appearances in all 344 episodes set a record for an actress on American primetime television. Karen's storylines focus on family troubles, addiction and kidnapping. In her early years on the serial, the character had much more of an "edge" in order to test the audience on who would be the most like J. R. Ewing (Larry Hagman), the primary character of its parent series "Dallas". (The bad girl role would later be taken on by Abby Cunningham, Karen's sister-in-law.)
Document 9: Megan Mullally: Megan Mullally (born November 12, 1958) is an American actress and singer. She is best known for her role as Karen Walker on the NBC sitcom "Will & Grace" (1998–2006, 2017-), for which she received 7 consecutive Primetime Emmy Award nominations for Outstanding Supporting Actress in a Comedy Series, winning twice in 2000 and 2006. She also received nominations for numerous other accolades for her portrayal, including 7 consecutive Screen Actors Guild Awards nominations for Outstanding Performance by a Female Actor in a Comedy Series, winning 3 times in 2001, 2002, and 2003, as well as receiving 4 Golden Globe Award nominations.
Document 10: Will Truman: William "Will" Truman is a fictional character on the American sitcom "Will & Grace", portrayed by Eric McCormack. He is a lawyer who lives in the Upper West Side of New York City with his best friend, Grace Adler. The series also portrays his relationship with the two other main characters, Karen Walker (Megan Mullally) and Jack McFarland (Sean Hayes).
Document 11: Meryl Streep: Mary Louise "Meryl" Streep (born June 22, 1949) is an American actress and philanthropist. Cited in the media as the "best actress of her generation," Streep is particularly known for versatility in her roles and her accent adaptation. Nominated for 20 Academy Awards, Streep has more nominations than any other actor, and is one of the six actors to have won three or more competitive Oscars for acting. Streep has also received 30 Golden Globe nominations, winning eight - more nominations and more competitive wins than any other actor.
Document 12: Blythe Danner: Blythe Katherine Danner (born February 3, 1943) is an American actress. She won two Primetime Emmy Awards for Best Supporting Actress in a Drama Series for her role as Izzy Huffstodt on "Huff" (2004–2006), and a Tony Award for Best Featured Actress in a Play for her performance in "Butterflies Are Free" (1969–1972). Danner was nominated for two Primetime Emmy Awards for Outstanding Guest Actress in a Comedy Series for portraying Marilyn Truman on "Will & Grace" (2001–2006), and the Primetime Emmy Award for Outstanding Lead Actress in a Miniseries or a Movie for her roles in "We Were the Mulvaneys" (2002) and "Back When We Were Grownups" (2004). For the latter, she was also nominated for the Golden Globe Award for Best Actress – Miniseries or Television Film.
Document 13: Grace Adler: Grace Elizabeth Adler (formerly Adler-Markus) is a fictional character in the American sitcom "Will & Grace", portrayed by Debra Messing. A Jewish interior designer living in New York City, she lives with her gay best friend, Will Truman (played by Eric McCormack), for a majority of the series. She is also the employer of Karen Walker (Megan Mullally) and the friend and neighbor of Jack McFarland (Sean Hayes).
Document 14: Karen Walker (Will &amp; Grace): Karen Walker ("née" Delaney; previously St. Croix, Popeil, and Finster) is a fictional character on the American television sitcom "Will & Grace", portrayed by Megan Mullally.
Document 15: Nancy Walker: Nancy Walker (May 10, 1922 – March 25, 1992) was an American actress and comedian of stage, screen, and television. She was also a film and television director (most notably of "The Mary Tyler Moore Show", on which she also made several guest appearances). During her five-decade long career, she may be best remembered for her long-running roles as Mildred on "McMillan & Wife" and Ida Morgenstern, who first appeared on several episodes of "The Mary Tyler Moore Show" and later became a prominent recurring character on the spinoff series "Rhoda".
ground_truth: Will & Grace