Russell T Davies teased the “great supporting character” Splice while speaking on The Official Doctor Who Podcast.

By James Hibbs

Published: Monday, 13 May 2024 at 10:05 AM


With two episodes of Doctor Who season 14 having now aired, fans are desperately awaiting Saturday’s new instalment, the highly anticipated episode written by former showrunner Steven Moffat.

Moffat’s episode is called Boom, and it will see the Doctor trapped when he steps on a landmine in the middle of a battlefield. He will then spend the rest of the episode stuck, trying to save both himself and Ruby without moving.

Now, while speaking on The Official Doctor Who Podcast for episodes 1 and 2, Space Babies and The Devil’s Chord, showrunner Russell T Davies has teased what fans can expect from the episode, and offered up a hints towards the wider plot and supporting characters.

“We’re on war-torn planet, Kastarion 3,” he explained. “It’s bleak, it’s scary, it’s muddy, it’s foggy, it’s dangerous, and that throws Ncuti’s Doctor into the most extraordinary situation in which both he and Ruby have to act at the height of their powers and use all their wits to escape from this.

“There’s a great supporting cast and there’s a great supporting character called Splice, and one thing I would say in this story is be very careful about saying Splice’s father’s name out loud.”

Ncuti Gatwa in Doctor Who standing on a green landmine looking shocked
Ncuti Gatwa in Doctor Who.
BBC Studios/Bad Wolf, James Pardon

Splice is being played in the episode by Caoilinn Springall, who has previously had roles in The Midnight Sky, Citadel and Stopmotion – however, beyond that we know very little about the character or how Davies’s warning will play out.

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Davies previously hyped up Moffat’s new episode at a recent Q&A, telling that “people will be talking about that for years to come”.

He explained: “At the very start of that, the Doctor stands on a landmine and can’t move for the entire episode – that is absolutely a masterpiece of performance from [Ncuti and Millie], and in terms of tension, it’s just incredible.”

Meanwhile, Moffat himself has said that he thought the concept for the episode was “dynamite“, adding that Davies emailed him back after he pitched it saying “that’s it, go write that, I want that immediately”.

He continued: “It’s a collaboration of enthusiasm… what we’re doing is giggling and laughing and shouting and bounding around the room about how clever and exciting all this is.

“If you’re not doing that on a show like Doctor Who – or, frankly, any show – what’s the point?”