Doctor Who series 12 rewrote the rule book with the episode 'Fugitive of the Judoon', revealing Jo Martin's character Ruth as an incarnation of The Doctor, setting the redefinition of the character's origins as The Timeless Child into motion.
The Holby City actress' Who debut was a big deal, especially as she was the first person of colour to play the titular Time Lord, so it's highly understandable that director Nida Manzoor had a lot of nerves when it came to filming it.
Speaking exclusively to Digital Spy, Manzoor explained: "It was so exciting to be part of that piece of casting, and to have the honour to direct an actor with the kind of calibre and breadth of ability as Jo and Jodie together. I always felt like I was in some kind of dream. It was pinch-me moments constantly.
"You know, Chris Chibnall's a very generous showrunner. I was able to discuss with the costume, 'What do we want her to wear? The aesthetic? What does her TARDIS look like?' We had different lighting options. 'What about her skin tones? Her costume?'
"We were really trying to think carefully about how we can really make her just look so badass. 'Is she badass? Does she look cool? What is she wearing?' [laughs] These things were just so important. I felt really lucky with that, actually, because it has so many shifts for both those Doctors.
"One of my favourite things as a director is performance, working with the actors, and finding the truth, finding the vulnerability, and all the shades. They're both so generous to work with.
"It was honestly such a great experience for me. It was the biggest thing I'd done so far. So coming onto it, I felt nerves, like, 'Oh, I'm really kind of stepping into the big leagues. This is a machine.' They have their kind of ongoing crew, but the crew are so awesome, and they really made me feel welcome."
Manzoor is behind Channel 4's We Are Lady Parts, a series about a Muslim punk rock band, and she's gone in deep about everything you need to know about it in another exclusive chat with us.
Doctor Who airs on BBC One in the UK and BBC America in the US. Series 13 is due to premiere later this year.
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