Actress Kim Hunter, who won a supporting actress Oscar in 1951 for her role as Stella in A Streetcar Named Desire and played chimpanzee psychiatrist Dr. Zira in the Planet of the Apes movies, died Wednesday in New York of an apparent heart attack. She was 79. "Kim Hunter was a fine actress and a wonderful person," said Apes co-star Charlton Heston. "The world has lost a unique talent."