(Undated) — “Harry Potter” actress Helen McCrory is dead at the age of 52. McCrory is best known for her roles as Narcissa Malfoy in the Harry Potter film series and as Aunt Polly in the television series Peaky Blinders. Her husband, actor Damian Lewis (who starred in the wildly popular “Homeland”), broke the news on his Twitter page. The actress had been battling cancer.