The BBC has confirmed that comedienne, Catherine Tate has accepted the role of Doctor Who’s new companion in the fourth series of the hit sci-fi show.

Catherine starred in the show’s Christmas Special in 2006 and when asked if she would like to become a more permanent fixture in the show she replied “no one has asked yet!”

Doctor Who’s executive producer and head writer, Russell T Davies described Tate as an “absolute star” in The Runaway Bride episode.

“We are delighted that one of Britain’s greatest talents has agreed to join us for the fourth series,” he said.

“Viewers can expect more ambitious storylines and a whole host of guest stars in 2008.”

Catherine Tate 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.”