Meg Tilly (born Margaret Elizabeth Chan; February 14, 1960) is a Canadian–American actress and novelist. For her role in the 1985 film Agnes of God, she won a Golden Globe Award and was nominated for the Academy Award for Best Supporting Actress. Her other film roles include Psycho II (1983), The Big Chill (1983), Masquerade (1988), and Valmont (1989). For her lead role in the television series Bomb Girls (2012–13), she won a 2013 Leo Award. Tilly has written five novels, including Porcupine, which was a finalist for the Sheila A. Egoff Children's Literature Prize. She is the sister of actress Jennifer Tilly.