The official Doctor Who website has revealed some new details about David Walliams previously reported Doctor Who character who will appear in series 6 later this year. He will be playing Gibbis in a “spooky” story written by Toby Whithouse who also wrote School Reunion and Vampires of Venice. David Walliams said, 'I am a huge fan of Doctor Who and am so looking forward to working with Matt Smith and running up and down some corridors with him.' Doctor Who series 6 will broadcast this Spring on BBC1.