In later life, Rigg found fame with a new generation of fans as Lady Olenna Tyrell in Game of Thrones, but perhaps her most definitive role was secret agent Emma Peel in The Avengers, in the classic ...
Steed and Emma become entangled with a fiendish plot from the British Venusian Society to turn everyone's hair white. Steed infiltrates the group to flush out the culprit.