Diane Keaton Hall (January 5, 1946 – October 11, 2025) was an American actress. Her career spanned more than five decades, during which she rose to prominence in the New Hollywood movement. She collaborated frequently with Woody Allen, appearing in eight of his films. Keaton's accolades include an Academy Award, a BAFTA Award, and two Golden Globe Awards, along with nominations for two Emmy Awards and a Tony Award. She was honored with the Film at Lincoln Center Gala Tribute in 2007 and the AFI Life Achievement Award in 2017.
Keaton's career began on stage, acting in the ensemble of the original Broadway production of the musical Hair (1968) and the romantic interest in Woody Allen's comic play, Play It Again, Sam (1969), the latter of which earned her a nomination for a Tony Award for Best Featured Actress in a Play. She made her screen debut with a small role in Lovers and Other Strangers (1970) before rising to prominence with her first major film role as Kay Adams in Francis Ford Coppola's The Godfather (1972), a role she reprised in the sequels Part II (1974) and Part III (1990).