Question: Which star of the TV series "Will & Grace" also appears in the film The Sisters?

full_context: Document 1: The Other Sister: The Other Sister is a 1999 American romantic comedy film directed by Garry Marshall and stars Juliette Lewis, Giovanni Ribisi, Diane Keaton, and Tom Skerritt. It was filmed in Long Beach, Pasadena, and San Francisco, California. The film was written by Marshall, Bob Brunner, and Malia Scotch Marmo (uncredited).
Document 2: Sean Hayes (actor): Sean Patrick Hayes (born June 26, 1970) is an American actor, comedian, and producer. He is best known for his role as Jack McFarland on the NBC sitcom "Will & Grace", for which he won an Emmy Award, four SAG Awards, and one American Comedy Award, and earned six Golden Globe nominations. He also runs a television production company called Hazy Mills Productions, which produces shows such as "Grimm", "Hot in Cleveland", "The Soul Man", and "Hollywood Game Night".
Document 3: Sisters (2015 film): Sisters is a 2015 American comedy film directed by Jason Moore and written by Paula Pell. The film stars Tina Fey and Amy Poehler, and was released on December 18, 2015 by Universal Pictures.
Document 4: Sister Cities (film): Sister Cities is a Lifetime television film directed by Sean Hanish, based on the internationally acclaimed 2006 play of the same name by Colette Freedman. The film stars Stana Katic, Jess Weixler, Michelle Trachtenberg, and Troian Bellisario as the four sisters along with Jacki Weaver, Alfred Molina, Amy Smart, and Tom Everett Scott filling out the rest of the cast.
Document 5: Mike Sussman (TV series writer/producer): Mike Sussman (born June 22, 1967) is an American television writer and producer. He is best known as a writer and producer of the "Star Trek" franchise and as the Co-Creator and Executive Producer of the TNT one-hour drama "Perception", starring Emmy® Award-winner Eric McCormack as a crime-solving neurologist. "
Document 6: Sisters (2006 film): Sisters is a 2006 independent horror film directed by Douglas Buck. It is a remake of the 1973 Brian De Palma film of the same name. The film stars Stephen Rea, Lou Doillon, and Chloë Sevigny in the leading roles, with Dallas Roberts and JR Bourne playing supporting characters.
Document 7: My Sister's Keeper (film): My Sisters's Keeper is a 2009 American drama film directed by Nick Cassavetes and starring Cameron Diaz, Abigail Breslin, Sofia Vassilieva, and Alec Baldwin. Based on Jodi Picoult's novel of the same name, On June 26, 2009 the film was released to cinemas in the United States, Canada, Ireland, Mexico, and the United Kingdom.
Document 8: 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 9: Sister Mary Explains It All: Sister Mary Explains It All is a 2001 satirical dark comedy film written by Christopher Durang and directed by Marshall Brickman. The film, based upon Durang's 1979 play "Sister Mary Ignatius Explains It All For You", and starring Diane Keaton in the title role, premiered on the Showtime network.
Document 10: The Sisters (2005 film): The Sisters is a 2005 film starring Maria Bello, Mary Stuart Masterson, and Erika Christensen as the title characters; it also stars Alessandro Nivola, Rip Torn, Eric McCormack, Steven Culp, Tony Goldwyn and Chris O'Donnell. The film was written by Richard Alfieri (based on his own play) and directed by Arthur Allan Seidelman.
Document 11: 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 12: Perception (U.S. TV series): Perception was an American crime drama television series created by Kenneth Biller and Mike Sussman. The series stars Eric McCormack as Dr. Daniel Pierce, a neuropsychiatrist with schizophrenia who assists the FBI on some of their most complex cases.
Document 13: Eric McCormack: Eric James McCormack (born April 18, 1963) is a Canadian-American actor known for his role as Will Truman in the American sitcom "Will & Grace" and Dr. Daniel Pierce in the American crime drama "Perception".
Document 14: List of Perception episodes: "Perception" is an American crime drama created by Kenneth Biller & Mike Sussman, which aired on TNT from July 9, 2012, through March 17, 2015. The series stars Eric McCormack as Dr. Daniel J. Pierce, a schizophrenic neuropsychiatrist and college professor, who is enlisted by the FBI to assist on some of their most complex cases.
Document 15: 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.
ground_truth: Eric McCormack