Child Free is the Big Finish writing debut of Holly Robinson and George Fletcher.

Fletcher said: "This is a play about adulthood and letting go of childhood. We wanted to explore the strange moment where suddenly all of your mates are making this massive life choice, and sometimes with a lot of ease.

"And you look at them and go, wow, you really think that you’re able to do this? Why don’t I think I’m able to do this? There's something about the world of Torchwood, which is so sleek and urban – and what's it like when you land all of the mess and sprawl of a newborn baby into that?"

His co-writer Holly Robinson added: "It was really exciting to do this story with a character like Suzie. Indira Varma was obviously so brilliant, and Suzie has this real advantage for writers, where there’s a real clarity to her character. Cold and calculating and pragmatic. But there’s also so much room to explore and imagine around her."