Many leading British actors have mixed art and politics, but no great actor ever made such a decisive break from one to the other as Glenda Jackson, who has died aged 87, when she was elected Labour MP for Hampstead and Highgate in 1992.
For the previous 30 years, she had been an outstanding, ferocious presence in theatre and on screen, a leading light of the Royal Shakespeare Company in its most radical phase, and as memorable in film comedies with George Segal and Walter Matthau as she was in more tempestuous movies by Ken Russell.