Doctor Who (series 4) Jones from the previous series. John Barrowman, Elisabeth Sladen, Noel Clarke and Camille Coduri also returned to appear in the series finale, as well Billie Piper, who appeared as Rose Tyler in the three final episodes of the series. The series started production on 8 August 2007 and concluded on 29 March 2008. A short Children in Need special titled "Time Crash" was also produced and before "Voyage of the Damned", as well as a mini-episode entitled "Music of the Spheres", which was premiered at the "Doctor Who" Prom after the fourth series finale in July 2008. The fourth series
The Lodger (Doctor Who) for Rose Tyler and the TARDIS to catch him up in a few days, and by chance saving the Earth by hiding it from the passing space fleet of a violent alien race. The story was based on ideas that Roberts had since a child to imagine the Doctor experiencing everyday human life and his enjoyment of stories set on Earth rather than in space. Roberts' original comic strip appealed to new executive producer Steven Moffat, who enthused to Roberts that he had "got to do" "The Lodger" as an episode. Roberts had previously had the idea to make the