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Glenda McKay (born 2 February 1971) is a British actress.

She is best known for playing the character of Rachel Hughes on the popular ITV soap Emmerdale from 1988 until the character was killed off in 1999, in a well-remembered scene in which she was pushed of a cliff by Graham Clark.

Glenda's brother Craig McKay also starred alongside her in Emmerdale as her screen brother Mark Hughes. McKay has since become a teacher in West Yorkshire.