The Doctor Who finale prequel: She Said, He Said

Quibble all you like about the meaning of the word ‘prequel’, this is a sort of introduction to Saturday’s ‘game-changing’ (according to Steven Moffat) season finale of Doctor Who. Can you work out who Clara is or what the Doctor’s name is? Or have you already been accidentally sent the whole thing on Blu-Ray so know the answer – in which case, don’t tell us.