Who portrayed an alcoholic singer whose career is on the downswing in the 2006 film "Bobby"?

Demi Gene Moore (née Guynes; born November 11, 1962) is an American actress and film producer. After making her film debut in 1981, she appeared on the soap opera "General Hospital" and subsequently gained recognition as a member of the Brat Pack with roles in "Blame It on Rio" (1984), "St. Elmo's Fire" (1985), and "About Last Night..." (1986). Her starring role in "Ghost" (1990), the highest-grossing film of that year, earned her a Golden Globe nomination. She had further box-office success in the early 1990s, with the films "A Few Good Men" (1992), "Indecent Proposal" (1993), and "Disclosure" (1994).

In 1996, Moore became the highest-paid actress in film history when she received a then unprecedented $12.5 million to star in "Striptease". A major critical and financial failure, it marked the beginning of a lengthy downturn in Moore's career. Following starring roles in "The Scarlet Letter" (1995), "The Juror" (1996) and "G.I. Jane" (1997), all of which were critical and commercial disappointments, marked the end of Moore's career as a leading lady in Hollywood.

In Emilio Estevez's drama "Bobby" (2006), Moore portrayed Virginia Fallon, an alcoholic singer whose career is on the downswing, as part of an ensemble cast, about the hours leading up to the Robert F. Kennedy assassination. As a member of the cast, she was nominated for the Screen Actors Guild Award for Best Cast in a Motion Picture. The film won the Hollywood Film Festival Award for Best Ensemble Cast.