The talented actress became 'all the rage' (as it were) for her work aboard the popular Spy/Drama television program of the late 1960's The Avengers, a runaway hit definitely for its time and place. And perhaps defying the odds over what they say about aging women being able to find little work, Rigg certainly kept busy, though her opportunities definitely turned to more conventional fare. Still, late in her life, she returned to the world of Science Fiction and Fantasy with a top guest spot aboard HBO's stellar Game Of Thrones, introducing her to a whole new generation of fans. Those who came to know the lady late in the game? Do yourself a favor and check out The Avengers, and you'll find something worthy of your undivided attention. Sure, it may be a bit dated: this can happen to programs which define the era of the conception ... and The Avengers did it stunningly well.
Alas, none of us last forever, though milady certainly gave it an admirable try ...
May she rest in peace.