Question: Sherri Lou Ellis was portrayed by Cher in the 1983 film "Silkwood." Which actress portrayed her roommate?

Context paragraphs:
Domino Vitali: Dominetta Vitali, known simply as Domino, is a fictional character and the main Bond girl in the James Bond novel, "Thunderball".  For the 1965 film adaptation of the same name, her name was changed to Dominique Derval, nicknamed Domino, and she was portrayed by French actress Claudine Auger.  In the 1983 film adaptation "Never Say Never Again", her character was renamed Domino Petachi and she was portrayed by American actress Kim Basinger.

Dear Mom, Love Cher: Dear Mom, Love Cher is a 2013 American television documentary about Georgia Holt, the mother of singer and actress Cher.  The film recounts Cher's family history and features in-depth interviews with her, Holt, Holt's other daughter Georganne LaPiere, and Holt's grandchildren, from Cher, Chaz Bono and Elijah Blue Allman.  It premiered on Lifetime on May 6, 2013.  The worldwide VOD/DVD release was on September 24, 2013, the same release date as Cher's 25th studio album, "Closer to the Truth".  P. David Ebersole directed the film, and Todd Hughes was the producer.

Silkwood: Silkwood is a 1983 American biographical drama film directed by Mike Nichols starring Meryl Streep, Cher and Kurt Russell.  The screenplay by Nora Ephron and Alice Arlen was inspired by the life of Karen Silkwood.  Silkwood was a nuclear whistleblower and a labor union activist who died in a suspicious car accident while investigating alleged wrongdoing at the Kerr-McGee plutonium plant where she worked.  In real life, her death was vindicated in a victorious 1979 lawsuit, "Silkwood v. Kerr-McGee", led by attorney Gerry Spence.  The jury rendered its verdict of $10 million in damages to be paid to the Silkwood estate (her children), the largest amount in damages ever awarded for that kind of case at the time.  The Silkwood estate eventually settled for $1.3 million.

Wicket W. Warrick: Wicket W. Warrick is a fictional character from the "Star Wars" franchise, first introduced and portrayed by Warwick Davis in the 1983 film "Return of the Jedi".  He subsequently appeared in two made-for-television movies, an animated series, and promotional media for "Star Wars" from 1983 to 1986.  Wicket is a diminutive teddy bear-like creature known as an Ewok, living on the forest moon of Endor and eventually participating in the Battle of Endor as an ally of the Rebel Alliance.

Dusty Ellis: Sherri Lou "Dusty" Ellis (October 13, 1953 – November 2, 2012) was an American woman known for her involvement in the Kerr-McGee plutonium plant criminal case of the 1970s when she and her roommate Karen Silkwood became activists and nuclear whistleblowers after both of their bodies tested positive for plutonium contamination.  Their fight for safer working conditions was chronicled in the 1983 film "Silkwood", in which Ellis was portrayed by Cher, who was nominated for the Academy Award for Best Supporting Actress for her performance as Ellis.  After Karen Silkwood's death in 1974, Ellis continued to protest and was involved in a series of legal battles against Kerr-McGee and the state of Oklahoma.

List of awards and nominations received by Cher: Cher is an American singer, actress, producer, author and philanthropist.  She has been honored with numerous worldwide awards and accolades recognizing her success in music, television, fashion and film, both as a solo artist and as part of Sonny & Cher.  She has also been honored for her humanitarian and charity work.  She has won an Academy Award, a Grammy Award, an Emmy Award, three Golden Globe Awards, and the Best Actress Award at the Cannes Film Festival, making her one of few artists to have received those top honors.  Cher is also the only artist to date to have achieved a number-one single on a Billboard chart in each of the past six decades.  Cher is a Tony Award away from achieving the EGOT status (Emmy, Grammy, Oscar, and Tony) which is considered the "grand slam" of American show business.

Karen Silkwood: Karen Gay Silkwood (February 19, 1946 – November 13, 1974) was an American chemical technician and labor union activist known for raising concerns about corporate practices related to health and safety of workers in a nuclear facility.  Following her mysterious death, which received extensive coverage, her estate filed a lawsuit against chemical company Kerr-McGee, which was eventually settled for $1.38 million.  Silkwood was portrayed by Meryl Streep in Mike Nichols' 1983 Academy Award-nominated film "Silkwood".

Nien Nunb: Nien Nunb is a fictional character in the "Star Wars" franchise.  Introduced in the 1983 film "Return of the Jedi", he was brought to life both as a puppet and a costumed actor during the film.  Nunb was puppeteered by Mike Quinn and was portrayed by Richard Bonehill in wide shots.  The character was voiced by Kipsang Rotich, a Kenyan student who spoke in his native Kalenjin language, as well as in the Kikuyu language.  Quinn and Rotich returned to the role for the 2015 film "", with the former confirmed for the 2017 film "".

Dian Alberts: Dian Carina Felicia Alberts (formerly van Houten, van Groeningen and van der Zee) was a character from the Dutch television soap series "Goede tijden, slechte tijden" (English: Good Times, Bad Times).  She was played by three actresses: Lotte Van Dam (October 17, 1991 - September 15, 1993, stand-in; May - August 1996), Chris Jolles (December 29, 1994 - January 5, 1999) and Rixt Leddy (September 6, 2005 - March 3, 2008).  Each actress portrayed a different side of Dian's personality; Van Dam was the good girl, Jolles the bad girl while Leddy balanced these characters.

Diana Scarwid: Diana Elizabeth Scarwid (born August 27, 1955) is an American actress.  Her performance in the 1980 film "Inside Moves" garnered her an Academy Award nomination for Best Supporting Actress.  The following year she portrayed the adult Christina Crawford in "Mommie Dearest" (1981).  Scarwid has over 70 film and television credits, including "Pretty Baby" (1978), "Silkwood" (1983) "Psycho III" (1986), "Extremities" (1986), "Brenda Starr" (1989) and "What Lies Beneath" (2000).  She received an Emmy Award nomination for the 1995 TV movie "Truman".

Supporting paragraphs: Dusty Ellis Karen Silkwood
Answer: Meryl Streep