Katherine Dow Blyton (born 20th November 1964 in Jarrow, County Durham) is an English actress who portrayed Harriet Finch in Emmerdale from November 2013 to October 2022. Prior to this role, she portrayed an unnamed Doctor in April 1996.
Known for her role as Sally Hunter in Hollyoaks from 2001 to 2005, Blyton has also appeared in Coronation Street, Where The Heart Is, Doctors, Casualty, The Royal, Silent Witness, The Syndicate, Brassic and the second series of Malpractice.