Writer Timothy X Atack said: "I've got a book called Abandoned Places and it’s a photographer who travels the world and finds hotels that are slowly rotting away or islands that used to be inhabited but have been left to the elements. These amazing photographs were an inspiration for what might happen with an urban explorer, in more of an influencer space, and from that a frisson with the Doctor and with Rose started to build up in a very natural way.

"And I have this deep love of Doctor Who's more eldritch, Lovecraftian villains, especially when you end up not really knowing any more about them at the end than at the beginning. Sometimes you just want something that hates, and that's what Mr Fingers is. He despises life."

Director Helen Goldwyn added: "We’re seeing different incarnations of the Powell Estate, this familiar setting from the TV series, and exploring more of what that community might look and feel like. Here, we get to see the future version of the estate, which is a very bleak, dystopian vision. It’s a really cleverly constructed script where you get that picture of the modern flat and the destroyed flat - it creates such a vivid visual image in your mind as you’re listening."

Christopher Eccleston said: "I come from an estate like the Powell Estate. Not quite as concreted, but very much like it. And in my childhood, especially in summer, it was quite a magical, mystical place.

"I like it when Doctor Who fastens on our folklore and it investigates it. It's often the simplest things like, are you my mummy, or just being tapped on the shoulder... The Doctor's obviously frightened of Mr Fingers!"

And Billie Piper reminisced on the now-iconic setting: "It was always one of my favourite locations, being on the Powell Estate. We did so much of the early days there that it holds a special place in my heart, and it was weird filming on a living and working estate - we started to feel like residents!"

On where we find the time travellers in this story, Piper added: "Rose is very established now as a time traveller. But what's so great is that she's not cynical and tired by it. She's still got a very strong sense of right from wrong, which the Doctor lacks sometimes."

Christopher Eccleston

Camille Coduri

Timothy X Atack, Harki Bhambra, Mandi Symonds, Camille Coduri, Dan Starkey, Helen Goldwyn, Matt Fitton