2010 The Power Friday, January 29, 2010 Zelda Rubinstein died she was 76 Zelda Rubinstein died she was 76. Rubinstein was an American actress and human rights activist , best known as eccentric medium Tangina Barrons in the movies Poltergeist (1982) and its sequels, Poltergeist II: The Other Side (1986), and Poltergeist III