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

So you’re sitting in your dressing room on an ordinary day (well ordinary for an actress) playing a normal person who makes breakfast and loses her purse 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...