Agatha Christie holds special personal memories for me because my mum, a television producer called Pat Sandys, had been the first person to persaude the Agatha Christie estate to put one of her stories on T.V.
As a child, I always remember our home, which was a flat just on the Barnes side of Hammersmith Bridge in London, buzzing with actors such as Patrick McGee and Peter Bowles. We were a family who were always on the go.
I grew up without the rose-tinted look at the profession many of my friends had, but I've been very lucky playing major roles in 'An Ideal Husband', 'Arcadia' and 'The Memory of Water'.
When I got on stage, I would have a rush of adrenaline; everybody gets it. Normally after the first night it becomes more controllable, and as long as I could ride the wave, I was still in charge.
When women's parts are being written, they are more and more for under 30s who are nubile and beautiful. Actresses over 40 are finding very little happening.