She is the great-niece of Asquith's son, , English director of such films as and , and a first cousin of the economist and of politician.
In 2016, Bonham Carter reprised her role of the Red Queen in.
His own father was a , and his wife, Helena's grandmother, was a.
Helena's paternal great-grandfather was , 1st Earl of Oxford and Asquith and Prime Minister of Britain 1908—1916.
She said that before the conception of her daughter, she and Burton had been trying for a baby for two years and although they conceived naturally, they were considering.
Carter debuted on television with the 1983 television film A Pattern of Roses, in which she played Netty Bellinger.