The Doctor (Doctor Who) Big Finish Productions. Matt Smith made a brief "imagined" cameo seen only by actor William Hartnell (portrayed by David Bradley), in the movie dramatising the early years of Doctor Who "An Adventure in Space and Time". In early production documents, the Doctor was said to be 650 years old, although this was never stated on screen. By the time the Doctor did cite his age ("Let me see, in human terms, 400, yes, 450 years" in the serial "The Tomb of the Cybermen" (1967); he kept a 500-year diary), he had already regenerated to a younger form. The intention at
An Adventure in Space and Time was in the Season 21 serial "Frontios"; Mark Eden appeared as the title character in the Season 1 serial "Marco Polo"; Nicholas Briggs, who has voiced the Daleks since the series was revived in 2005, portrayed his own predecessor; and Brian Cox voiced the Elder Ood in "The End of Time". Jean Marsh and Anneke Wills, who both played companions to Hartnell's First Doctor also appeared during Verity Lambert's leaving party scene. The drama was watched by 2.71 million viewers in the UK. Rotten Tomatoes gave it a 95% approval rating based on 22 reviews, and an average score of