Billie Piper has blocked out her popstar years from her memory because they were so "deeply traumatic" for her.Billie Piper's role in Doctor Who "changed everything" for her. 34-year-old actress starred as the Time Lord's assistant Rose Tyler from 2005 to 2013, opposite David Tennant as the Doctor. While the programme led to a huge revival in Billie's career, it also had its downsides - namely that she couldn't go out without being recognised again.
Zoe Heriot (played by Wendy Padbury, 1968-9). Something of a human computer who stowed away in the TARDIS, Zoe had a neat line in exasperation at the Second Doctor's frequent mishaps, and was played with great charm by Wendy Padbury, who had to don some interesting costumes whilst in the role (writes Gavin Fuller).