Mary Elizabeth "Sissy" Spacek (; born December 25, 1949) is an American actress and singer. She is the recipient of various accolades including an Academy Award, three Golden Globe Awards, two Critics' Choice Movie Awards, a Screen Actors Guild Award, and nominations for four BAFTA Awards, three Primetime Emmy Awards, and a Grammy Award. She has also received a star on the Hollywood Walk of Fame.
Born and raised in Texas, Spacek initially aspired to a career as a singer. In 1968, using the name "Rainbo", she recorded a single, "John, You Went Too Far This Time". Sales of her music sputtered, however, and she was dropped from her record label. She subsequently switched her focus to acting, enrolling at the Lee Strasberg Theatre and Film Institute. Spacek began her professional acting career in the early 1970s, making her debut as an extra in Andy Warhol's Women in Revolt (1971). She received attention for her role as Holly Sargis in Terrence Malick's Badlands (1973).
Spacek rose to prominence with her portrayal of Carrie White in Brian De Palma's Carrie (1976), for which she received her first nomination for the Academy Award for Best Actress. Following her appearances in the acclaimed films Welcome to L.A. (1976) and Robert Altman's 3 Women (1977), she won the Academy Award for Best Actress for her portrayal of Loretta Lynn in the biographical musical Coal Miner's Daughter (1980). Her other Oscar-nominated roles include Missing (1982), The River (1984), Crimes of the Heart (1986) and In the Bedroom (2001). Spacek also appeared in the films Raggedy Man (1981), JFK (1991), Affliction (1997), The Straight Story (1999), Tuck Everlasting (2002), Nine Lives (2005), North Country (2005), Four Christmases (2008), Get Low (2010), The Help (2011), and The Old Man & the Gun (2018).
On television, Spacek received Primetime Emmy Award nominations for the television films The Good Old Boys (1995) and Last Call (2002), and the HBO drama series Big Love (2011). She portrayed matriarch Sally Rayburn on the Netflix drama thriller series Bloodline (2015–2017), Ruth Deaver on the Hulu psychological horror series Castle Rock (2018), and Ellen Bergman on the Prime Video psychological thriller series Homecoming (2018).
As a singer, Spacek sang all of Loretta Lynn's songs for the soundtrack album of Coal Miner's Daughter, which garnered her a nomination for the Grammy Award for Best Female Country Vocal Performance. She also released a debut studio album, Hangin' Up My Heart (1983), which was critically well received and peaked at no. 17 on Billboard Top Country Albums.