British actress Diana Rigg has died at age 82.<br />Her decades-long acting career spanned 1960s spy series "The Avengers," classical theater and "Game of Thrones."<br />Her agent Simon Beseford announced that Rigg died peacefully in her sleep.<br />Rigg starred as a Bond girl in 1969's "On Her Majesty's Secret Service."<br />Rigg was given the honorary title of Dame in 1995.