History Trivia / DoctorWhoS28E13Doomsday

* CreatorBacklash: Creator/NicholasBriggs revealed that he disagreed with the way one of Dalek Sec's opening lines was portrayed. In its original form, Briggs thought it sounded as though Sec was asking something to another Dalek, but then answering his own question. He asked the episode's director, Creator/GraemeHarper, if they could split it into two lines, have Sec turn to a Bronze Dalek and ask the question for it to answer. Graeme agreed but they had to get special permission to change the script.

** One expensive sequence removed from the script at the development stage involved the Doctor and Rose ascending to the top of Torchwood Tower in the Jathaa Sun Glider (described as a "space canoe") mentioned in the previous episode; this was replaced with the much simpler moment of Jake summoning them into the lift.
*** More specifically, the money was needed to pay for the beast at the end of [[Recap/DoctorWhoS28E9TheSatanPit The Satan Pit]], which otherwise might have been represented as a CreepyChild. Also, crashing into the top floor of a skyscraper within five years of 9/11 might have given the wrong image.
** Dalek Jast was originally named Rabe. This was changed because it sounded too much like Ray. (This was quite a late change, as the original name still appeared on some merchandise.)

* CreatorBacklash: Creator/NicholasBriggs revealed that he disagreed with the way one of Dalek Sec's opening lines was portrayed. In its original form, Briggs thought it sounded as though Sec was asking something to another Dalek, but then answering his own question. He asked the episode's director, Creator/GraemeHarper, if they could split it into two lines, have Sec turn to a Gold Dalek and ask the question for it to answer. Graeme agreed but they had to get special permission to change the script.

* ActingForTwo: Creator/NicholasBriggs voices both the Daleks and the Cybermen, leading to a rather memorable scene where the two races get into a pissing match. This also means any conversation between Daleks is Briggs Talking to Himself.

* TalkingToHimself: Creator/NicholasBriggs voices both the Daleks and the Cybermen, leading to a rather memorable scene where the two races get into a pissing match. This also means any conversation between Daleks is Briggs Talking to Himself.

* InspirationForTheWork: Some elements of the story were inspired by Creator/PhilipPullman's ''Literature/HisDarkMaterials'' trilogy. Pullman was "flattered" by the references in the episode, and compared Creator/RussellTDavies' actions to his own practice of referencing works.

* CompletelyDifferentTitle: The French title is "Adieu Rose".

* LyingCreator: Creator/RussellTDavies told the press Rose was gone for good. He told Creator/BilliePiper, "See you in two years".

* WorkingTitle: ''Torchwood Falls''.

** Dalek Jast was originally named Rabe. This was changed because it sounded too much like Ray.

* CreatorBacklash: Creator/NicholasBriggs revealed that he disagreed with the way one of Dalek Sec's opening lines was portrayed. In its original form, Briggs thought it sounded as though Sec was asking something to another Dalek, but then answering his own question. He asked episode Creator/GraemeHarper if they could split it into two lines, have Sec turn to the Gold Dalek and ask answer the question. Graeme agreed, but they had to get special permission to change the script.