Once, Upon Time (TV story)

Once, Upon Time was the third episode of series 13 of Doctor Who.

It formed the third chapter of the six-part serial Doctor Who: Flux, and saw the Thirteenth Doctor revisiting lost memories in her own timestream. As such, it re-introduced the Fugitive Doctor, and began to piece together how she fits in, with the Siege of Atropos and the Flux's creation.

Synopsis
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Plot
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Cast

 * Thirteenth Doctor - Jodie Whittaker
 * Yasmin Khan - Mandip Gill
 * Dan Lewis - John Bishop
 * Bel - Thaddea Graham
 * Azure - Rochenda Sandall
 * Swarm - Sam Spruell
 * Vinder - Jacob Anderson
 * Diane - Nadia Albina
 * Fugitive Doctor - Jo Martin
 * Joseph Williamson - Steve Oram
 * Grand Serpent - Craig Parkinson
 * Sonya Khan - Bhavnisha Parmar
 * Old Swarm - Matthew Needham
 * Karvanista - Craige Els
 * Awsok - Barbara Flynn
 * Passenger - Jonny Mathers
 * Police Officer - Chantelle Pierre
 * Voice of the Cybermen - Nicholas Briggs
 * Voice of the Mouri - Amanda Drew
 * Priest Triangle - Nigel Lambert

Crew
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Story notes

 * The credits of this episode cemented the term "Fugitive Doctor" -- gained from the episode where this incarnation first appeared, Fugitive of the Judoon, and widely used in Doctor Who fandom up to this point -- as a DWU term.

Ratings
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Filming locations
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Production errors
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Continuity

 * The Doctor notes, worriedly, "The Angel has the TARDIS", echoing back to the memorable line from TV: Blink, in which the Weeping Angels were first introduced.

Home video releases
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