Katharine Isobel Murray (born November 2, 1981), better known by the name Katharine Isabelle, is a Canadian actress best known as a scream queen for her roles in various horror films. Born Vancouver, British Columbia, she made her screen debut as a child in Cousins (1989), followed by supporting roles in numerous films and television series. Initially credited as Katie Murray, she later began using the name Katherine Isobel and subsequently Katharine Isabelle.