So brace your self for revelations about Two Doctors-esque tall Sontarans, computers voiced by the Doctor and Catherine Tate trying to get in on the act:
â€¢ The production team couldn’t find an actor short enough for Kaagh in The Last Sontaran so they had to make a new costume – thereby upping the cost of the episode.
â€¢ The actor who played the milkman from Journey’s End is to appear in an upcoming episode.
â€¢ Catherine Tate wants a part (but not as Donna Noble), as her daughter loves the show.
â€¢ David Tennant wants to be the voice of ‘Mr. Smith’.Â He was also to appear in the opening episode (in a sub-plot which would explain why K9 was not to appear in the show) but, at the time of recording the commentary (May 2008), this idea was binned. Julie Gardener states “it could still happen”.