In 2006, Tate appeared in Doctor Who as Donna Noble, a woman in a wedding dress who suddenly appeared in the TARDIS at the end of the episode "Doomsday". She then played a major role as Donna in the Christmas special "The Runaway Bride", the episode which continued from "Doomsday". On her appearance in the series, Tate commented "I was holding out for a summer season at Wigan rep but as a summer job, this'll do."

It was announced on July 4, 2007 that Tate would be returning to Doctor Who to reprise the role of Donna as the Doctor's companion throughout the fourth series of the revived series, due to be shown in 2008. Russell T Davies said: "We are delighted that one of Britain's greatest talents has agreed to join us for the fourth series".

Catherine in Doctor Who

Russell Davies said "Catherine was an absolute star in The Runaway Bride and we are delighted that one of Britain's greatest talents has agreed to join us for the fourth series. Viewers can expect more ambitious storylines and a whole host of guest stars in 2008."

Catherine Tate herself said: "I am delighted to be returning to Doctor Who. I had a blast last Christmas and look forward to travelling again through time and space with that nice man from Gallifrey."

More info on the new Doctor Who assistant as we get it!