Susie Orbach

Being able to provoke a different point of view to the standard current ideological or political perspective as played out in conventional newspaper or radio reportage is what a public intellectual does. But it's not merely about being oppositional, because that's too negative.

I've never had much interest in spinoffery - the idea of writing in someone else's universe generally leaves me cold - but 'Doctor Who' is different. I've grown up with it. It's been part of my life since I was tiny, watching Jon Pertwee on a grainy black and white television in Cornwall and being terrified out of my mind.