Colleen Dewhurst (3 June 1924 - 22 August 1991) was a Canadian-born actress best known for playing Marilla Cuthbert in the various Anne of Green Gables productions from Sullivan Entertainment. Her breakthrough stage role, which made her a major success, came in 1974 after 27 years of acting, when she appeared in Eugene O'Neill's A Moon for the Misbegotten. Dewhurst had a recurring role on the CBS TV series Murphy Brown, for which she won her third Emmy. Over the course of her 45 year career, she won a total of four Emmys, two Tony Awards, two Obies and two Gemini Awards.
Dewhurst was born in Montréal, Québec, Canada, but in the last years of her life she lived on a farm in South Salem, New York with a summer home on Prince Edward Island. She died of cervical cancer at age sixty-seven.
Dewhurst was married to James Vickery and George C. Scott, and is the mother of actor Campbell Scott.