Doctor Who In Detail

Doctor Who In Detail is a guide to the long running BBC Television programme Doctor Who. The first episode was broadcast in 1963, and the programme celebrated its 50th anniversary in 2013, making Doctor Who the longest running science fiction television programme.
Thirteen actors have portrayed the role of the Doctor in the television series (excluding stand-ins) with Jodie Whittaker taking on role as the Thirteenth Doctor in 2018, the first time the Doctor has been portrayed by a woman.
Quote from

The Five Doctors

Tegan: And who might you be?
First Doctor: I might be any number of things, young lady. As it happens I am the Doctor. The original, you might say.

Tegan and the First Doctor (played by Richard Hurndall)

Doctor Who on TV today Tuesday, September 29,

No Doctor Who is scheduled to be shown today.