David Harewood

Support for charities takes many forms. Some people give their money, some their spare time. I give my name and my voice. We give what we can to make a difference to the people and issues that matter to us. But what's most important, especially for celebrities, is giving our genuine commitment.

We never had books at home, but my dad, seeing how keen I was to read, took me to Islington Library when I was about eight and we pulled out two - a Biggles and a science fiction novel. I never got the ace fighter pilot but fell in love with all things to do with the future and space. Isaac Asimov soon became my guiding star.