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Patty Duke (December 14, 1946 – March 29, 2016) played Grandma Janice/Great-Aunt Hilary. She was more famous for playing look-alike cousins Patty and Cathy Lane on the 1963-66 ABC sitcom The Patty Duke Show. She also played Hellen Keller in the 1962 film The Miracle Worker. She was the mother of actor Sean Astin and suffered from bipolar disorder. She died on March 29, 2016 from sepsis due to a ruptured intestine.