Downton Abbey

Maggie Smith, the masterful, scene-stealing actor who won an Oscar for “The Prime of Miss Jean Brodie” in 1969 and gained new fans in the 21st century as the dowager Countess of Grantham in “Downton Abbey” and Professor Minerva McGonagall in the Harry Potter films, died Friday. She was 89.

Jim Carter, who plays Mr. Carson on the PBS hit show, Downton Abbey, joins us to talk about the final season of Downton and his work to raise money for…