Doctor Who Cast: Where Are They Now?
5. Billie Piper
The Role: The love of two of the Doctor's lives, Billie Piper's character Rose Tyler set the template for all the companions that followed her and still remains many fans' favourite thanks to her down-to-earth nature and romance with the Time Lord in the first two series.
Where Is She Now? Before Who, Piper was primarily known for being a 90s pop star but her role as Rose launched her acting career. Clearly keen not to be typecast, Billie's next two leading parts after Rose were as Victorian sleuth Sally Lockhart in The Ruby In The Smoke and The Shadow In The North (alongside Matt Smith) and as Belle Du Jour, a high-class prostitute in Secret Diary Of A Call Girl. In 2013's The Day Of The Doctor, she returned to Doctor Who to play The Moment, a sentient bomb which took Rose's form.
Billie Piper can currently be seen in gothic drama Penny Dreadful as - SPOILER ALERT - the bride of Frankenstein's Monster.