Twelfth Doctor

The Twelfth Doctor was an incarnation of the Doctor that initially travelled with Clara Oswald. He emerged from the Eleventh Doctor's explosive regeneration on Trenzalore, and was the product of what his predecessor called "regeneration number thirteen".

Shortly after regenerating, this Doctor voiced his surprise at having new kidneys, and his inability to fly the TARDIS, much to Clara's obvious dismay. (TV: The Time of the Doctor)

At some point in his travels, he joined his previous selves in helping place Gallifrey in a pocket universe at the end of the Last Great Time War. (TV: The Day of the Doctor)

Behind the scenes

 * Like the War and Ninth Doctors, the Twelfth Doctor unusually debuted on television before his regeneration from his predecessor was screened.
 * His first words — "Kidneys! I've got new kidneys!" — keep to the modern tradition of new Doctors commenting on their bodies. Previously, the Tenth Doctor commented on his "new teeth", (TV: The Parting of the Ways) and the Eleventh on his legs. (TV: The End of Time)