The Rigg Actress referred to in the crossword solutions is DIANA Rigg, an English actress best known for her roles in the 1960s television series The Avengers and the HBO series Game of Thrones. She has also had a successful career on stage, appearing in numerous plays and musicals. She was made a Commander of the Order of the British Empire in 1994 and was appointed Dame Commander of the Order of the British Empire in 1994.