The Doctor’s regenerations are sacred and unchangeable.” No, no they aren’t folks. In fact, I’m going to say something controversial: regeneration in Doctor Who has NEVER been the same ...

Watch the Tenth Doctor's incredible transformation ... The following regeneration proved to be spectacular! As a Time Lord, the Master also has the ability to regenerate, as we saw in Utopia ...

The Master may not have been part of Doctor Who from the beginning, but portents of their arrival were present as early as the First Doctor's era. Blessed with many great monsters Doctor Who may ...