Cast as Clementine Churchill opposite Robert Hardy in "Winston Churchill--The Wilderness Years"
Final film with O'Toole, "Under Milk Wood"; last film for nine years
Had supporting role in the BBC-1 series "Aristocrats"
Played Daniel Day-Lewis' mother in "The Age of Innocence"
Played Reverend Mother Gaius Helen Mohiam in "Dune"
Portrayed Madame Armfeldt in a stage revival of "A Little Night Music", starring Judi Dench and staged by Mathias
Portrayed the Duchess of Windsor in the NBC miniseries "The Two Mrs Grenvilles"
Returned to Broadway as star of the award-winning revival of "An Inspector Calls"
Revived "Marlene" for a tour and eventual run in London's West End
Starred as suffragette Emmeline Pankhurst in the BBC series "Shoulder to Shoulder" (aired in the USA on PBS in 1975)
Appeared as Hannah Jelkes in the London production of Tennessee Williams' "The Night of the Iguana"
Appeared as the title character's grandmother in "Heidi" (The Disney Channel)
Born and raised in Wales
Essayed the mother or Fairuza Balk's Cecile in "Valmont", Milos Forman's adaptation of "Les Liaisons Dangereuses"
First played Ann Smiley opposite Alec Guiness in "Tinker, Tailor, Soldier, Spy" (aired on PBS in the USA in 1980)
Made London stage debut as "Hedda Gabler"
Made stage singing debut starring as Vera in the London revival of the musical "Pal Joey"
Offered a delectable turn as the evil Livia in the BBC production of "I, Claudius"
Played another Williams' heroine, Alma, in "Eccentricities of a Nightingale"
Starred opposite Peter O'Toole in "Siwan", a BBC production about the arranged marriage between the title character, the daughter of King John and a Welsh prince
Toured Wales in Welsh-language productions for the Wales Arts Council
Appeared in the London production of the stage adaptation of the musical "Gigi"
Delivered a mememorable performance as Queen Eleanor in the A&E miniseries "Ivanhoe"
Portrayed Beth Morgan in the BBC TV adaptation of "How Green Was My Valley"
Received widespread attention for her theatrical performance in the musical remake of "Goodbye, Mr. Chips", starring O'Toole and directed by Herbert Ross
Reprised Ann Smiley in the syndicated "Smiley's People"
Starred in L.A. stage production "My Old Lady"
Starred in the British TV series "Warrior Queen" (Thames Television)
Starred in the short-lived Broadway production of "Marlene"; received a Tony Award nomination
Began career as a radio actress with BBC-Radio, Wales in the mid-1940s
Film debut in small role in "The Longest Day"
First portrayed screen legend Marlene Dietrich for two nights in the musical play "Marlene"; written by Gems and directed by Mathias
Had co-starring role in "Becket", starring then-husband Peter O'Toole; first of four films together
Initial collaborations with playwright Pam Gems (as translator/adaptor) and director Sean Mathias, "Ghosts"
Made TV debut in the 1950s on BBC-Television, Wales
Played the Red Queen in the Channel Four adaptation of "Alice Through the Looking Glass", starring Kate Beckinsale
Played title role of "Saint Joan" in Covington
Portrayed Virgina Woolf in the stage production, "A Nightingale in Bloomsbury Square"
Returned to film acting in Herbert Ross' feature biopic "Nijinsky"
Worked as a newsreader and announcer for the BBC