Question: Catherine Louise Sagal (born January 19, 1954) is an American actress and singer-songwriter, she's know as well for starring in the role of Cate Hennessy, on the show "8 Simple Rules", is an American sitcom, originally starring who as the father?

full_context: Document 1: Andrea Martin: Andrea Louise Martin (born January 15, 1947) is an American actress, singer, author and comedian, best known for her work in the television series "SCTV". She has appeared in films such as "Black Christmas" (1974), "Wag the Dog" (1997), "Hedwig and the Angry Inch" (2001), "My Big Fat Greek Wedding" (2002) and "My Big Fat Greek Wedding 2" (2016), and lent her voice to the animated films "Anastasia" (1997), "The Rugrats Movie" (1998) and "" (2001).
Document 2: Full House: Full House is an American sitcom created by Jeff Franklin for ABC. The show chronicles the events of widowed father, Danny Tanner, who enlists his brother-in-law and best friend to help raise his three daughters. It aired from September 22, 1987, to May 23, 1995, broadcasting eight seasons and 192 episodes.
Document 3: Kaley Cuoco: Kaley Christine Cuoco ( ; born November 30, 1985) is an American actress. After a series of supporting film and television roles in the late 1990s, she landed her breakthrough role as Bridget Hennessy on the ABC sitcom "8 Simple Rules", on which she starred from 2002 to 2005. Thereafter, Cuoco appeared as Billie Jenkins on the final season of the television series "Charmed" (2005–2006). Since 2007, she has starred as Penny on the CBS sitcom "The Big Bang Theory", for which she has received Satellite, Critics' Choice, and People's Choice Awards. Cuoco's film work includes roles in "To Be Fat like Me" (2007), "Hop" (2011) and "Authors Anonymous" (2014). She received a star on the Hollywood Walk of Fame in 2014.
Document 4: Al Bundy: Al Bundy is a fictional character and the essential protagonist of the U.S. television series "Married... with Children", played by Ed O'Neill. He is a misanthropic, beer-loving, indebted, working-class father of two, portrayed as somewhat a tragicomedic figure. Although he is cheap, unsuccessful, boorish, unhappy, and scheming, he nevertheless stands by his family, displaying wit, self-sacrifice and resilience in times of crisis. He and his wife, Peggy Bundy, were rated the 59th best characters on television by Bravo.
Document 5: Christina Applegate: Christina Applegate (born November 25, 1971) is an American actress and dancer who, as an adolescent actress, started playing the role of Kelly Bundy on the Fox sitcom "Married... with Children" (1987–97). In her adult years, Applegate established a film and television career, winning an Emmy and earning Tony and Golden Globe nominations. She is also known for doing the voice of Brittany in the "Alvin and the Chipmunks" film series.
Document 6: Katey Sagal: Catherine Louise Sagal (born January 19, 1954) is an American actress and singer-songwriter. She is best known for her role as Peggy Bundy, Al's sarcastic, lazy, bon bon-eating wife, on "Married... with Children" and for her role voicing the character Leela on the animated science-fiction series "Futurama" from 1999 to 2003 and 2008 to 2013, as well as for starring on the show "8 Simple Rules" in the role of Cate Hennessy. In the latter role, she worked with John Ritter until his death, leading to Sagal's taking over as the series lead for the remainder of the show's run. Sagal has been married to "Sons of Anarchy" creator Kurt Sutter since 2004. Currently, Sagal is a series regular on CBS's Superior Donuts.
Document 7: 8 Simple Rules: 8 Simple Rules (originally 8 Simple Rules for Dating My Teenage Daughter for the first season) is an American sitcom, originally starring John Ritter and Katey Sagal as middle-class parents Paul and Cate Hennessy raising a family of three. Kaley Cuoco, Amy Davidson and Martin Spanjers co-starred as their teenage kids; Bridget, Kerry and Rory Hennessy. The series ran on ABC from September 17, 2002 to April 15, 2005. The first season focused on Paul being left in charge of the kids after Cate takes a full-time job as a nurse, with comedic emphasis on his often strict rules concerning his daughters and dating. The series' name and premise were derived from the book "8 Simple Rules for Dating My Teenage Daughter: And Other Tips from a Beleaguered Father (Not That Any of Them Work)" by W. Bruce Cameron.
Document 8: The Middle (TV series): The Middle is an American sitcom about a middle-class family living in Indiana facing the day-to-day struggles of home life, work, and raising children. The show premiered September 30, 2009, on the ABC network and features "Everybody Loves Raymond" actress Patricia Heaton and "Scrubs" actor Neil Flynn. "The Middle" was created by former "Roseanne" and "Murphy Brown" writers Eileen Heisler and DeAnn Heline of Blackie and Blondie Productions. The show is produced by Warner Bros. Television and Blackie and Blondie Productions. "The Middle" has been praised by television critics and earned numerous award nominations.
Document 9: Martin Spanjers: Martin Brian Spanjers (born February 2, 1987) is an American actor. He played Rory Hennessy on the ABC sitcom "8 Simple Rules" from 2002 to 2005, for which he won a Young Artist Award in 2004.
Document 10: Amy Davidson: Amy Davidson (born September 15, 1979) is an American actress. She is known for playing Kerry Hennessy in the ABC sitcom "8 Simple Rules".
Document 11: John Ritter: Jonathan Southworth Ritter (September 17, 1948 – September 11, 2003) was an American actor and comedian. The son of the late singing cowboy star Tex Ritter and the father of actors Jason Ritter and Tyler Ritter, he was best known for his role as Jack Tripper on the ABC sitcom "Three's Company" (1977–84), for which he received a Primetime Emmy Award and a Golden Globe Award in 1984. He briefly reprised the role on the spin-off "Three's a Crowd", which aired for one season.
Document 12: Susan Sullivan: Susan Michaela Sullivan (born November 18, 1942) is an American actress with credits in daytime and primetime programs. Sullivan is best known for her roles as Lenore Curtin Delaney on the daytime soap opera "Another World" (1971–76), as Lois Adams on the ABC sitcom "It's a Living" (1980–81), as Maggie Gioberti Channing on the primetime soap opera "Falcon Crest" (1981–89), as Kitty Montgomery on the ABC sitcom "Dharma & Greg" (1997–2002), and as Martha Rodgers on "Castle" (2009–2016).
Document 13: Kurt Sutter: Kurt Leon Sutter (born May 5, 1960) is an American screenwriter, director, producer, and actor. He worked as a producer, writer, and director on "The Shield," and appeared on the show as hitman Margos Dezerian. Sutter is also the creator of "Sons of Anarchy" on FX; he wrote, produced, and directed the series, as well as played incarcerated club member Otto Delaney. Sutter spent time with members of an outlaw motorcycle club in Northern California as research for "Sons of Anarchy". Sutter's wife, actress Katey Sagal, was one of the show's lead actresses.
Document 14: List of 8 Simple Rules episodes: "8 Simple Rules for Dating My Teenage Daughter" is an American television sitcom that originally aired on ABC from September 17, 2002 to April 15, 2005. Loosely based on humor columnist W. Bruce Cameron's book of the same name, the show starred John Ritter during its first season. After Ritter's sudden death, Katey Sagal took over the show's starring position for the rest of the series' run. Overall, 76 episodes were made over three seasons.
Document 15: Well...: Well... is the first album released by American singer-songwriter and actress Katey Sagal. The album was originally released on April 19, 1994 by Virgin Records.
ground_truth: John Ritter