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
Doctor Who spin-offs the comic writers had the opportunity to depict the Eighth Doctor's regeneration into the Ninth Doctor, but declined when Davies refused to allow them to give the Ninth Doctor a companion prior to Rose Tyler. The publishers of "Doctor Who Magazine" have also produced many the spin-off publications including "Doctor Who Adventures", "Doctor Who Classic Comics" and many other special publications and annuals which include comics. "Doctor Who Magazine", which is now owned by Panini Comics continues to produce new comic strip adventures. Panini has reprinted many of the early DWM strips in trade paperback format. At the 2007 San