Captain Jack is in the last three episodes of this series and the Master (in the form of Harold Saxon and played by John Simm) is in the last two (and the character in the
third last episode has something to so with the Master as well I think) [unless the Master is not coming back at all and it is the "Meddling Monk" instead].
The Master is a time lord (hence the Doctor not being the last of his kind) but they have always been enemies. The Master has never died or been killed so could easily come back. It has been shown in episodes already this series that Mr Saxon knows who the Doctor is and doesn't like him. Also, some of the things that happened in The Lazarus Experiment episode are apparently relevant to the last two episodes of this series.
quote:
Originally posted by fatfreechicken
The clip from Jonathan Ross can be seen on Youtube here for anyone who missed it. 
That's been removed but afaik it's the same as the one
here. Is it just me or in the clip does the Doctor see Jack running towards the TARDIS but leave anyway?
BTW there are 13 episodes in this series, including 3 sets of two-parters (like the Darleks' episodes), the next two to be shown are also a two-parter and so are the last two episodes of the series.
(Wikipedia is a quite a good cure for boredom 
)
(I also just found/worked out what is happening in the next two episodes to be shown by using Wikipedia
)
/ 
