Harriet Walter

Dame Harriet Walter, DBE (born 24 September 1950 ) voiced Beatrice Mapp in the Big Finish Doctor Who audio story The Boy That Time Forgot and, subsequently, appeared as Jo Patterson in Revolution of the Daleks.

Career
Although Jo Patterson had no scenes with the Thirteenth Doctor in Revolution, Walter had previously worked with Jodie Whittaker in the 2014 mini-series The Assets. She also starred along side Bradley Walsh, Freema Agyeman and Peter Davison in Law & Order: UK, which was co-produced by Chris Chibnall.

Personal life
She is married to fellow Big Finish actor Guy Paul.

She was named a Dame Commander of the Order of the British Empire for services to drama, making her the first Doctor Who actress to achieve this honour.