Ann Dowd is an American actress. She has played supporting roles in several films, including Green Card, Lorenzo's Oil, Philadelphia, Garden…Ann Dowd is an American actress. She has played supporting roles in several films, including Green Card, Lorenzo's Oil, Philadelphia, Garden State, The Manchurian Candidate, Marley & Me, Side Effects, St. Vincent, Captain Fantastic, and Hereditary. Dowd appeared as Sandra in the thriller film Compliance, for which she received the National Board of Review Award for Best Supporting Actress.