Voyage of the Damned (Doctor Who) opinion about the episode was divided; the writing and Minogue's performance were both praised and criticised. The episode continues from the end of the third series finale "Last of the Time Lords", when the TARDIS collided with the "Titanic". To investigate further, the Doctor runs the TARDIS's self-repair programme and boards the "Titanic", where he discovers that the "ship" is an interstellar cruiser from the planet Sto. Modelled after the Earth ocean liner of the same name, the ship is orbiting present-day Earth to observe "primitive cultures"–specifically, Christmas. He decides to stow away, only telling waitress Astrid Peth (Kylie Minogue)
A Christmas Carol (Doctor Who) Writer Steven Moffat, who is also head writer and executive producer of the series, wanted to make the special "really Christmassy" because the previous Christmas special, "The End of Time", had been darker than usual as it led to the Tenth Doctor's (David Tennant) regeneration. He stated that he had "never been so excited about writing anything. I was laughing madly as I typed along to Christmas songs in April". Moffat stated that "A Christmas Carol" was "probably [his] favourite Christmas story" and that it lent itself to "Doctor Who", as there was an aspect similar to time travel in