A former barmaid in soap Coronation Street is going to play the first baddie in the new Doctor Who.
Sarah Lancashire will be in the first episode of the new series alongside new assistant Catherine Tate.
She will play Miss Foster, a mysterious and powerful businesswoman when the series hits TV screens next spring.
The actress said: "I'm absolutely thrilled to be in Doctor Who. It's a brilliant episode and I'm looking forward to taking the Time Lord on."
She has done lots of acting but is most well known for her role as Coronation Street barmaid Raquel which she quit in 1996.