Williams on meeting Turner for the first time: "I thought Sophie was the coolest thing I'd ever seen. I get why they do chemistry reads, because when it's right, it's so right. Like, we're best friends. And they could see that all those years ago, and it must have been real magic watching these two girls have the best time together."
Turner on working with Williams on Game of Thrones: "We're a nightmare to work with. If you're working with your best friend, you will never get any work done, ever. Anytime we tried to be serious about anything, it's just the hardest thing in the world. I think they really regretted putting us in scenes together. It was difficult."