Changes

===Tenth Doctor (2005-2010)===

===Tenth Doctor (2005-2010)===

The Tenth Doctor was more humorous and vivacious than that of his predecessor. Yet, much anger and survivor's guilt was still present in his character.  He was also the first, and so far only Doctor to have two regenerations, and the first Doctor to regenerate, and not have his appearance change.  This occurred in the Series 4 episode, ''The Stolen Earth.''  [[David Tennant]] was the first actor to be credited as "The Doctor" as opposed to "Doctor Who", a trend which [[Matt Smith]] kept. Of the five incarnations of the Doctor who have appeared since the series restart, David Tennant is the most popular.  He is often compared with Tom Baker, who played the Fourth Doctor as the most popular incarnation of the Doctor.

The Tenth Doctor was more humorous and vivacious than that of his predecessor. Yet, much anger and survivor's guilt was still present in his character.  He was also the first, and so far only Doctor to have two regenerations, and the first Doctor to regenerate, and not have his appearance change.  This occurred in the Series 4 episode, ''The Stolen Earth.''  [[David Tennant]] was the first actor to be credited as "The Doctor" as opposed to "Doctor Who". Of the five incarnations of the Doctor who have appeared since the series restart, David Tennant is considered to be the most popular.  He is often compared with Tom Baker, who played the Fourth Doctor as the most popular incarnation of the Doctor.

===Eleventh Doctor (2010-2013)===

===Eleventh Doctor (2010-2013)===