Shelley Alexis Duvall (July 7, 1949 – July 11, 2024) was an American actress known for her portrayal of distinctive, often eccentric characters. She was the recipient of several accolades, including a Cannes Film Festival Award and a Peabody Award and nominations for a British Academy Film Award and two Primetime Emmy Awards.

Born in Texas, Duvall began acting after being discovered by director Robert Altman, who was impressed with her upbeat presence and cast her in the black comedy film Brewster McCloud (1970). Despite her hesitance towards becoming an actress, she continued to work with Altman, appearing in McCabe & Mrs. Miller (1971) and Thieves Like Us (1974). Her breakthrough came with Altman's cult film Nashville (1975), and she earned widespread acclaim with the drama 3 Women (1977), also directed by Altman, for which she won the Cannes Film Festival Award for Best Actress and earned a nomination for the British Academy Film Award for Best Actress in a Leading Role. That same year, she appeared in a supporting role (as a writer for Rolling Stone) in Woody Allen's satirical romantic comedy Annie Hall (1977) and hosted Saturday Night Live.