Julie Harris, the unprepossessing anti-diva who, in the guises of Joan of Arc, Mary Todd Lincoln, Emily Dickinson and many other characters both fictional and real, became the most decorated performer in the history of Broadway, died on Saturday at her home in Chatham, Mass. She was 87. The cause was not immediately known, said Francesca James, a longtime friend who was with her when she died. Ms. Harris had a lengthy, overstuffed résumé as an actress, with dozens of movie and television credits, including the 1955 film adaptation of John Steinbeck’s novel of brotherly rivalry, “East of Eden,” in...