Downton Abbey:  Meet the new cast – Dame Harriet Walter

Dame Harriet Walter a renowned actress with the Royal Shakespeare Company.  She has appeared in Atonement and Law & Order:  UK, just to name a few roles – she has too many credits to mention.

She will join Downton Abbey as Lady Shackleton, the formidable friend of the Dowager Countess.  A confidante and sparring partner, the characters are old school pals.

http://www.hellomagazine.com/film/2013071613528/downton-abbey-new-series-4/