Question: Which actress portrayed Dusty Ellis' roommate in the movie about her life?

Context articles: Norma Millay Ellis
Karen Silkwood
Dusty – The Original Pop Diva
Dusty Ellis
3 Women
Mary Ellis (Civil War nurse)
Dian Alberts
The Slim Dusty Movie
Forever Dusty
Kiss Me, Kill Me (2015 film)

Norma Millay Ellis (1894 - May 14, 1986) was an American singer and actress, and sister of the famous poet and playwright Edna St. Vincent Millay.
 Born in Rockland, Maine to Cora Lounella Buzelle and Henry Tolman Millay, Ellis was one of three sisters who were all, due to their parents’ divorcement, largely brought up by their mother.
 Having been a writer of poetry herself, Cora Millay ensured the presence of art and music in the Millay household, which became a vital part of the upbringing of Ellis and her two sisters.
 Ellis would go on to perform with the Provincetown Players and appear on Broadway.
 She married painter and actor Charles Ellis.
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".
Dusty – The Original Pop Diva is an Australian jukebox musical based on the life of Dusty Springfield.
 The book of the musical was written by John-Michael Howson, David Mitchell and Melvyn Morrow.
 "Dusty" received its world premiere on 12 January 2006 at the State Theatre of the Victorian Arts Centre, Melbourne, Australia.
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.
3 Women is a 1977 American avant-garde drama film written and directed by Robert Altman, and starring Shelley Duvall, Sissy Spacek and Janice Rule.
 It depicts the increasingly bizarre, mysterious relationship between a woman (Duvall) and her roommate and co-worker (Spacek) in a dusty, underpopulated Californian desert town.
Mary Ellis was a Union nurse during the American Civil War.
 Ellis assisted her husband in raising the 1st Missouri Cavalry regiment, and went to the field along with them.
 The regiment went to camp on August 1, 1861, and Ellis began nursing immediately when there was a measles outbreak in camp.
 Ellis performed numerous roles as a nurse, including assistant to the head surgeon.
 She recounts in a letter to Mary G. Holland that once Ellis fainted during surgery, but quickly returned to service once she was recovered.
 At the cavalry charge at Sugar Creek, Ellis worked to transport injured soldiers out of the field and to a house that was serving as a hospital.
 Ellis even saved the life of a man whom the regiment surgeon overdosed on medication.
 Though the doctors thought his recovery to be impossible and laughed at Ellis's attempts to revive him, Ellis successfully saved the soldier's life.
 The regiment surgeon came to resent Ellis after this event, though Ellis was certain that the rest of the unit supported her.
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.
The Slim Dusty Movie is a 1984 Australian feature film directed by Rob Stewart and starring Slim Dusty, Joy McKean, Jon Blake and Mary Charleston.
Forever Dusty is a stage musical based on the life of British pop star Dusty Springfield.
 The musical numbers are all songs performed by Springfield during her career.
 The book of the musical was written by Kirsten Holly Smith, who also plays the lead role of Dusty Springfield in the originating production, and Jonathan Vankin.
 "Forever Dusty" opened on 18 November 2012 at New World Stages, an Off-Broadway venue in New York City.
 The UK Premiere opened on 3 May 2017 at Brookside Theatre, a London Fringe theatre as the start of a UK theatre tour.
Kiss Me, Kill Me is an independent feature film, directed by Casper Andreas and written by David Michael Barrett, who both produced under their banner, Spellbound Productions.
 A neo-noir psychological thriller, the movie is a murder mystery about Dusty (Van Hansis) who, while confronting his unfaithful boyfriend, blacks out.
 When he comes to, his boyfriend Stephen (Gale Harold) has been murdered, and Dusty is the prime suspect.
 "Kiss Me, Kill Me" had its World Premiere September 18, 2015 at , which featured the film as its Spotlight Selection.