Steven Moffat:
Can you set the scene for this natal episode?

It’s his final battle and he’s been fighting it for a while. The Doctor is facing the joint challenge of a mysterious event in o espaço that has summoned lots of aliens to one place and helping Clara cook natal dinner. There are also elements from every series of Matt’s Doctor, which will come to a head in this special. Things that we’ve laid down for years are going to be paid off.

How was the read-through?

It was emotional. I think possibly the beginning of the end is mais emotional than the actual end. It was the same...

Orla Brady:
What drew you to the role of Tasha Lem?

So you’re sitting in your dressing room on an ordinary dia (well ordinary for an actress) playing a normal person who makes breakfast and loses her bolsa sometimes. Then along comes a call to play a galactic nun and whizz around the universe with Matt Smith. Now what girl wouldn’t be drawn to that?

Can you tell us anything about how we first meet your character?

The Doctor goes to see Tasha as they are old friends. He needs her help and knows he will find it with her as although she is fearsomely powerful, she is loyal to her friend.

What can...