I certainly never saw myself as posh.

We all have hierarchies at work - even on set, the runner would never walk up to the director and ask for a cup of coffee.

I never saw myself as a folk singer.

I'm not posh at all. I grew up in Sheffield but never managed to pick up the accent - which was careless because there'd be some cache now in being a northern playwright, but I missed out on that one.

I grew up listening in awe to stories of their wartime adventures. My granny, Joan, was a journalist and wrote amazing letters to my grandpa when he was a prisoner of war, while my nana, Mary, was a Land Girl, then a Wren. They were so independent, resilient and glamorous.

In a way, it's good not to be recognised as much off screen.