Mary Margaret O'Hara: Mary Margaret O'Hara. Actress: Museum Hours. Mary Margaret O'Hara was born in Toronto, Ontario, Canada. She is known for Museum Hours (2012), Maudie (2016) and Black Widow (2005).
Known For: Museum Hours (Anne), Maudie (Soundtrack("Dear Darling")), Black Widow (Elizabeth Peyton), Apartment Hunting (Hellen)
