The Day Of The Doctorintroduced the General, played here by Ken Bones and TNia Miller.
Game Of Thronesactor Donald Sumpter plays the latest incarnation of Time Lord president Rassilon.
It is also during this story that he first wields the powerful gauntlet which makes a return inHell Bent.
Perhaps the biggest of these elements is the Matrix, the repository of all Time Lord knowledge.
The Doctor belongs to the Prydonian chapter, and they can be recognised by their scarlet and orange robes.
Finally,The Deadly Assassincontained the first mention of the Shobogans, who are mentioned again inHell Bent.
Ohila and the Sisterhood of Karn reappear, having popped up briefly inThe Magicians Apprentice.
Though suspicious of one another at times, the Sisterhood and the Time Lords have a generally amicable relationship.
The General regenerates into a female form, and not for the first time.
However, its now located in Nevada rather than Utah, and is Claras TARDIS.
The Doctor once again claims that he has a duty of care over Clara.
On the latter occasion, Clara pointed out to the Doctor that she never asked that of him.
Theres an echo of the tenth Doctor adventureThe Waters Of Marsin this story.
Clara reverses the polarity, the first time someone has done so sinceThe Girl Who Died.
The Doctor closes the TARDIS doors by clicking his fingers.
The last bit is obviously changed, because the Doctor will never be able to remember her again.
Now if youll excuse me, I think Ive got something in my eye…
