 Ed Hime (who wrote the penultimate episode of the previous series) wrote an episode.Nina Metivier, who served as script editor on the previous series, also wrote an episode.In November 2019, "Doctor Who Magazine" revealed the writers for the twelfth series, including Vinay Patel, Pete McTighe, Maxine Alderton and Charlene James, as well as Hime, Métivier and Chibnall; Chibnall wrote four episodes and co-wrote a further three.