: The final line of the script where the Doctor identifies himself and Rose as "the stuff of legend" was the final scene filmed by Billie Piper as a series regular.
: Extra dialogue was written to explain why the deep cavern floor was covered in liquid (poison rain/snow from subterranean gases) due to the real-world snowy conditions during the quarry shoot. 2026 Target Novelization
: Early drafts featured the Slitheen (from Series 1) as the enslaved race on Krop Tor. Russell T Davies later replaced them with the newly created Ood to avoid detracting from the human characters and because new masks could be made within the budget. [S2E9] The Satan Pit
: Writer Matt Jones originally intended to hide Toby’s possession until the very end of the episode. Russell T Davies requested the reveal happen earlier to avoid a resolution that felt too abrupt.
: "I've seen fake gods and bad gods and demi-gods... But if I believe in one thing... just one thing... I believe in her!". : The final line of the script where
The draft text includes several famous lines, such as the Doctor's monologue about his beliefs and his final description of himself and Rose:
: The final production draft was dated February 10, 2006 . Russell T Davies later replaced them with the
: The story was initially developed under the umbrella title "Satan Pit" . Key Revisions :