Broadcast on the same evening as the 2025 Eurovision Song Contest Grand Final in Basel, Switzerland; the BBC1 screening actually preceded the event. Ncuti Gatwa had been due to act as UK spokesperson to give their votes, but was, "due to unforeseen circumstances, unfortunately ... no longer able to participate." He was replaced by Sophie Ellis-Bextor (whose mother Janet Ellis had played Teka in 1979-80's "The Horns of Nimon" shortly after giving birth to her).
This is not the first time the Doctor has been to an intergalactic version of the Eurovision Song Contest. The Seventh Doctor and Melanie Bush attended the Intergalactic Song Contest in the Doctor Who: The Monthly Adventures (1999) serial Bang-Bang-a-Boom! (2002).
Juno Dawson is now the 10th person to have written either Doctor Who novels, audio dramas, comics or mini-episodes before writing for the show which includes Russell T. Davies, Steven Moffat, Mark Gatiss, Paul Cornell, Gareth Roberts, Robert Shearman, Matt Jones, Joseph Lidster and Pete McTighe.
Cora Saint Bavier is from the planet Trion which is the same planet The Fifth Doctor's companion Vislor Turlough comes from.
When Kid learns the Doctors people are the Time Lords, he remarks that would make an awesome band name. British electric band The KLF came out with the song Doctorin' the Tardis under the alternative band name The Timelords in 1988.