The actress to join Matt Smith in Series 5 has been announced as 21-year-old Karen Gillan.
Executive producer Steven Moffat said, “We saw some amazing actresses for this part, but when Karen came through the door the game was up. Funny, and clever, and gorgeous, and sexy. Or Scottish, which is the quick way of saying it. A generation of little girls will want to be her. And a generation of little boys will want them to be her too.”
Series 5 starts production in July and will begin broadcasting in spring 2010.