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 60th anniversary in 2023, making Doctor Who the longest running science fiction television programme.

Fourteen actors have portrayed the role of the Doctor in the television series (excluding stand-ins) with David Tennant returning to the role as the Fourteenth Doctor in 2023. Ncuti Gatwa, the Fifteenth Doctor, recently completed his second series with a mysterious regeneration.

Doctor: And look - the main difference between humans and Missbelindachandrakind... Instead of the kidneys and the liver, all the detox is carried out here in an organ called the pasculum.
Belinda: It's like a second diaphragm.
Doctor: Exactly. The diaphragm kind of protects it like a sheath.
Belinda: Is that better or worse than humans?
Doctor: If you start deciding which body is best, you're going down a very dangerous path.

Doctor Who shown on Saturday, October 18,