Tobias Hill

As a child, l was fascinated by gemstones in the way that small children are fascinated by dinosaurs or trains. Stones seem very physical and look like sweets. You can look at them microscopically and imagine things about them.

I usually feel like the role comes to you to sort of illuminate some piece of where you are in your life. I feel like I myself am a single woman and I'm childless - by choice - at this point, and I don't know what will happen.

I'm not likely to be attracted to characters I've already done. I have to be almost frightened by the possibility of taking it on. Over the years, I realise I must enjoy walking that edge; I keep doing it.

After decades spent in rewrite rooms surrounded by other shouting writers, I discovered that I work best alone. I like being in charge of my time, working out the problems according to my own rhythms and being able to nap. That's a big one, the napping on demand!