Question: Which American-British actress born in 1949 appeared on the BBC television drama adaptation of Charles Dickens' novel "David Copperfield?"
Context: David Copperfield is a BBC television serial starring Ian McKellen in therror title role of the adaptation of Charles Dickens's novel that began airing in January 1966.  It also featured Tina Packer as Dora Flora Robson as Betsey Trotwood, Gordon Gostelow as Barkis, and Christopher Guard as young David.  The screenplay adaptation was written by Vincent Tilsley. David Copperfield is the eighth novel by Charles Dickens.  The novel's full title is The Personal History, Adventures, Experience and Observation of David Copperfield the Younger of Blunderstone Rookery (Which He Never Meant to Publish on Any Account).  It was first published as a serial in 1849–50, and as a book in 1850.  Many elements of the novel follow events in Dickens's own life, and it is often considered as his veiled autobiography.  It was Dickens' favourite among his own novels.  In the preface to the 1867 edition, Dickens wrote, "like many fond parents, I have in my heart of hearts a favourite child.  And his name is David Copperfield." David Copperfield is a 1913 British black-and-white silent film based on the novel "David Copperfield" by Charles Dickens.  It is the second-oldest known film adaptation of the novel. David Copperfield is a 10 episode BBC serial broadcast in 1986 and 1987 and based on the novel "David Copperfield" by Charles Dickens.  The series was written by James Andrew Hall and directed by Barry Letts.  It was produced by Terrance Dicks. David Copperfield is a 2000 film that was a joint US/Irish TV film adaptation of Charles Dickens's novel "David Copperfield".  It was filmed in Ireland, and broadcast on the TV Channel TNT as a Hallmark Entertainment production on December 10–11, 2000. David Copperfield is a two-part BBC television drama adaptation of Charles Dickens' novel "David Copperfield", adapted by Adrian Hodges.  The first part was shown on Christmas Day and the second on Boxing Day in 1999.  The production is notable for being the first screen work of actor Daniel Radcliffe, who would later achieve fame as the star of the "Harry Potter" films, where he would collaborate with his "David Copperfield" co-stars Maggie Smith, Zoë Wanamaker, Imelda Staunton, Dawn French and Paul Whitehouse.  The film was co-produced by BBC America and Boston television station WGBH, and first aired on American television in April 2000, as a feature in the PBS series "Masterpiece".  It won a Peabody Award in 2000. David Copperfield is a 1935 American film released by Metro-Goldwyn-Mayer based upon the Charles Dickens novel "The Personal History, Adventures, Experience, & Observation of David Copperfield the Younger".  A number of characters and incidents from the novel were omitted – notably David's time at Salem House boarding school, although one character he met at Salem House (Steerforth) was retained for the film as a head boy at the school David attended after his aunt Betsey Trotwood gained custody of him. David Copperfield, Jr. is the protagonist after which the 1850 Charles Dickens novel, "David Copperfield", was named.  The character is widely thought to be based on Dickens himself, incorporating many elements of his own life. Zoë Wanamaker, CBE (born 13 May 1949) is an American-British actress. David Copperfield is a British six-part television serial of the Charles Dickens novel adapted by Hugh Whitemore and first shown on BBC 1 in weekly parts from 1 December 1974.  It was a co-production with Time-Life Television Productions, and features David Yelland as David Copperfield, Martin Jarvis as Uriah Heep, and Arthur Lowe as Wilkins Micawber.  Also appearing were David Troughton, Ian Hogg, Timothy Bateson, Patience Collier, Anthony Andrews and Patricia Routledge.
Answer: Zoë Wanamaker