Linda Ann Gray (born September 12, 1940) is an American film, stage and television actress, director, producer and former model, best known for her role as Sue Ellen Ewing, the long-suffering wife of Larry Hagman's character J.R. Ewing on the CBS television drama series Dallas (1978–1989, 1991, 2012–2014). The role also earned her a nomination for the 1981 Primetime Emmy Award for Outstanding Lead Actress in a Drama Series as well as two Golden Globe Awards nominations.
Gray began her career in the 1960s in television commercials. In the 1970s, she appeared in numerous TV series before landing the role of Sue Ellen Ewing in 1978. After leaving Dallas in 1989, she appeared opposite Sylvester Stallone in the 1991 film Oscar. From 1994 to 1995, she played a leading role in the Fox drama series Models Inc., and also starred in TV movies, including Moment of Truth: Why My Daughter? (1993) and Accidental Meeting (1994). She went on to reprise the role of Sue Ellen in Dallas: J.R. Returns (1996), Dallas: War of the Ewings (1998), and in the TNT series Dallas (2012–2014), which continued the original series.
On stage, Gray starred as Mrs. Robinson in The Graduate in the West End of London in 2001, then on Broadway the following year. In 2007, she starred as Aurora Greenaway in the world premiere production of Terms of Endearment at the Theatre Royal, York and stayed with the production when it toured the United Kingdom. After the second Dallas was cancelled in 2014, Gray again took to the stage, this time in the role of the Fairy Godmother in a London production of Cinderella.
Source : Wikipedia
