Question: Which star of Poison Ivy received two Primetime Emmy Award nominations?
Context: Poison Ivy is a 1992 American drama-thriller film directed by Katt Shea.  It stars Drew Barrymore, Sara Gilbert, Tom Skerritt, and Cheryl Ladd.  The original music score is composed by David Michael Frank.  The film was shot in Los Angeles. Director Catherine Willows is a fictional character, portrayed by Marg Helgenberger, from the CBS crime drama "."  Helgenberger made her franchise debut in ""'s episode "Pilot".  Helgenberger received several award nominations for her portrayal of Catherine, including two Primetime Emmy Award nominations and two Golden Globe Award nominations. Toxicodendron radicans, commonly known as eastern poison ivy or poison ivy, is a poisonous Asian and North American flowering plant that is well-known for causing Urushiol-induced contact dermatitis, an itchy, irritating, and sometimes painful rash in most people who touch it.  It is caused by urushiol, a clear liquid compound in the plant's sap.  The species is variable in its appearance and habit, and despite its common name it is not a true ivy ("Hedera"), but rather a member of the cashew and pistachio family (Anacardiaceae).  "Toxicodendron radicans" is commonly eaten by many animals, and the seeds are consumed by birds, but poison ivy is most often thought of as an unwelcome weed. Poison Ivy II: Lily is a 1996 thriller film directed by Anne Goursaud, written by Chloe King and stars Alyssa Milano.  It is a sequel to the 1992 film, "Poison Ivy" and the second installment of the "Poison Ivy" series.  It is the only installment where Ivy is the protagonist and not the antagonist. Toxicodendron is a genus of flowering plants in the sumac family, Anacardiaceae.  It contains woody trees, shrubs and vines, including poison ivy, poison oak, and the lacquer tree.  All members of the genus produce the skin-irritating oil urushiol, which can cause a severe allergic reaction.  The generic name is derived from the Greek words τοξικός ("toxikos"), meaning "poison," and δένδρον ("dendron"), meaning "tree".  The best known members of the genus in North America are poison ivy "(T. radicans)", practically ubiquitous throughout most of eastern North America, and western poison oak ("T. diversilobum"), similarly ubiquitous throughout much of the western part of the continent. Marion Ross (born October 25, 1928) is an American actress.  Her best known role is that of Marion Cunningham on the ABC television sitcom "Happy Days", on which she starred from 1974 to 1984 and received two Primetime Emmy Award nominations.  Before her success on "Happy Days", Ross appeared in a variety of film roles, appearing in "The Glenn Miller Story" (1954), "Sabrina" (1954), "Lust for Life" (1956), "Teacher's Pet" (1958), "Some Came Running" (1958), "Operation Petticoat" (1959), and "Honky" (1971), as well as several minor television roles, one of which was on television’s "The Lone Ranger" (1954).  Ross also starred in "The Evening Star" (1996), for which she was nominated for the Golden Globe Award for Best Supporting Actress. Sara Gilbert (born Sara Rebecca Abeles; January 29, 1975) is an American actress, best known for her role as Darlene Conner on the ABC sitcom "Roseanne" from 1988 to 1997, for which she received two Primetime Emmy Award nominations.  Gilbert will reprise the role in 2018 for an eight episode revival.  She is also co-host and creator of the CBS daytime talk show "The Talk" and has had a recurring role as Leslie Winkle on CBS's "The Big Bang Theory". 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. Netflix is an American on-demand internet streaming media provider.  In 2013 Netflix became the first streaming platform to win a Primetime Emmy Award. " House of Cards" became the first original online-only web television series to receive major nominations for the 65th Primetime Emmy Awards.  "House of Cards" scored nine nominations, including Primetime Emmy Award for Outstanding Drama Series.  Meanwhile its first episode, "Chapter 1", received four nominations becoming the first webisode (online-only episode) of a television series to receive a major Primetime Emmy Award nomination.  Eigil Bryld won for Outstanding Cinematography for a Single-Camera Series, meanwhile David Fincher won for Outstanding Directing for a Drama Series.  Both, Bryld and Fincher won for the episode "Chapter 1", making it the first Emmy-awarded webisode.  The Following year "House of Cards" repeated in the category Outstanding Directing for a Drama Series, with Carl Franklin directing "Chapter 14".  Furthemore the political drama got its first nomination for writing for "Chapter 14", written by Beau Willimon. Charles Clarence Robert Orville Cummings, known as Bob Cummings (June 9, 1910 – December 2, 1990), was an American film and television actor known mainly for his roles in comedy films such as "The Devil and Miss Jones" (1941) and "Princess O'Rourke" (1943), but was also effective in dramatic films, especially two of Alfred Hitchcock's thrillers, "Saboteur" (1942) and "Dial M for Murder" (1954).  Cummings received five Primetime Emmy Award nominations, and won the Primetime Emmy Award for Best Actor in a Single Performance in 1955.  On February 8, 1960, he received two stars on the Hollywood Walk of Fame for his contributions to the motion picture and television industries.  The motion picture star is at 6816 Hollywood Boulevard, the television star is on 1718 Vine Street.
Answer: Sara Gilbert