Tags: Soap Character.
Diane Sugden (née Lambert previously Blackstock) is a fictional character on the ITV soap opera Emmerdale. She is portrayed by Elizabeth Estensen. She is perhaps best known for her marriage to Jack Sugden (Clive Hornby) and her most memorable storyline is perhaps her battle with colon cancer. She has also been involved in a love triangle with her ex-husband Rodney Blackstock (Patrick Mower) and her sister Val Lambert (Charlie Hardwick).