Katharine Isabelle Murray (born November 2, 1981) is a Canadian actress. She made her film debut in the romantic comedy film 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. She is best known for her roles as Ginger Fitzgerald in the werewolf horror films, Ginger Snaps (2000), Ginger Snaps 2: Unleashed (2004) and Ginger Snaps Back: The Beginning (2004) and Margot Verger in the NBC psychological thriller–horror television series Hannibal (2014-15).
Her other film credits include Disturbing Behavior(1998), Carrie (2002), Freddy vs. Jason (2003), 30 Days of Night: Dark Days (2010) and American Mary (2012), for which she earned several nominations for best actress, including the Fangoria Chainsaw Awards, Screamfest Horror Film Festival and Toronto After Dark Film Festival.