Keeley Hawes to Appear in Series 8

The BBC have announced that Keeley Hawes (Line of Duty) will guest star in series 8. She will appear in episode 5 as the villainous Ms. Delphox

Hawes said

I am delighted to join Doctor Who and to be working with this incredible team. Ms Delphox is a great character and someone I've had a lot of fun playing.

Moffat added

Anyone watching Jed Mercurio's amazing Line Of Duty will know that Keeley Hawes is having one hell of year. And now it's about to get even better as she achieves the greatest villainy yet attempted on Doctor Who: she plays a banker.