15 challenging questions on Doctor Who — Doctors, companions, TARDIS, Daleks, Cybermen and iconic episodes.
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Doctor Who is the longest-running science fiction television series in the world, first broadcast by the BBC on 23 November 1963 — the day after the Kennedy assassination. What began as a black-and-white teatime adventure starring William Hartnell has grown into a global cultural institution, spanning more than 60 years, fourteen-plus lead actors and countless companions, monsters and impossible places.
The show's brilliant invention is regeneration: when the Doctor's body is mortally wounded, it transforms into a new face, voice and personality. That single piece of in-universe magic has allowed legends like Tom Baker, David Tennant, Matt Smith, Peter Capaldi, Jodie Whittaker and Ncuti Gatwa to share one role across decades. The Doctor — a Time Lord from the planet Gallifrey — travels through space and time in the TARDIS, a blue police box bigger on the inside, accompanied by extraordinary companions like Rose Tyler, Donna Noble, Amy Pond, Clara Oswald and Ruby Sunday.
From the metallic dread of the Daleks screaming "exterminate" to the silent terror of the Weeping Angels and the body-horror of the Cybermen, the series has shaped how generations of fans imagine science fiction. The 2005 revival by , the Steven Moffat era's tightly-plotted puzzles and the global relaunch have only widened the show's reach. Few stories on television feel as much like home — and as endlessly new — as .