He didn't. He regenerated as usual. What happened to Ms. Whittaker when she fell out of the Tardis we have ( as of January 2018) still to find out.
Dr Mark Whittaker
Doctor Who started in 1963 so there was no doctor at that point.
The current actor playing Doctor Who until December 2017 is played by Peter Capaldi also known as the Twelfth Doctor. BBC recently announced the next Doctor Who (13th Doctor) as Jodie Whittaker who becomes first ever female Time Lord to play the role.Peter will step down as the Doctor at the end of the year after starring in his final season, and his regeneration scene is expected to take place during the 2017 Christmas special.
In July 2017, it was announced, star of Broadchurch, Jodie Whittaker will take over as The Doctor.
The actor playing the 11th doctor is Matt Smith
The Doctor Who Role Playing Game happened in 1985.
the new actor playing the role of "the doctor" on the series "dr.who" is Matt smith....
At the point of writing this answer, 2: David Tennant (10) followed by Matt Smith (11).
They started using color for the Third Doctor (1970).
She started her career on the soap Crossroads, and became a household name playing the Doctor's companion Martha Jones on Doctor Who. She now stars in Law and Order: UK.
A doctor who is just getting started often is paid by a hospital or another doctor rather than owning his or her own practice. The doctor can make about $80,000 to about $200,000 depending on his or her particular specialty.
The great ( and kinda cute) Christopher Eccleston played The Doctor before David Tennant. Eclleston was the ninth generation Doctor, And Tennant played the tenth.