Before the Flood (TV story)

 was the fourth episode of the ninth series of Doctor Who produced by BBC Wales.

Synopsis
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Plot
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Cast

 * The Doctor - Peter Capaldi
 * Clara - Jenna Coleman
 * Moran - Colin McFarlane
 * Cass - Sophie Stone
 * Lunn - Zaqi Ismail
 * O'Donnell - Morven Christie
 * Bennett - Arsher Ali
 * Pritchard - Steven Robertson
 * Prentis - Paul Kaye
 * Fisher King - Neil Fingleton
 * Voice of Fisher King - Peter Serafinowicz
 * Roar of Fisher King - Corey Taylor

Organisations

 * The Doctor says that the Faraday cage will be extracted and taken by UNIT into space, where the electromagnetic field of the Earth will cause the ghosts to eventually disappear.

Story notes

 * This episode adds an electric guitar counter-melody to the title theme, played by Capaldi himself, tying off of the Doctor playing Beethoven's Fifth Symphony on his electric guitar at the end of the cold opening.

Ratings
4.38 million

Filming locations
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Production errors
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Continuity

 * The guitar amplifier at the start of the episode features the Magpie Electricals logo. (TV: The Idiot's Lantern)
 * Upon learning from the Doctor that they have travelled back in time to 1980, O'Donnell notes that it is pre-Harold Saxon (TV: The Sound of Drums / Last of the Time Lords) as well as "pre-the Moon exploding and a giant bat coming out." (TV: Kill the Moon)
 * When O'Donnell notes that Bennett is throwing up, the Doctor says that time travel does that sometimes. (TV: The Caretaker) O'Donnell doubts that Rose, Martha and Amy did so on their first trips. (TV: The End of the World, The Shakespeare Code, The Beast Below)
 * When meeting Albar Prentis, the Doctor notes that he has met Tivolians before and that he isn't "a fan." (TV: The God Complex)
 * The current masters of Tivoli who have sent Prentis to Earth to bury the Fisher King are the Arcateenians. (TV: Greeks Bearing Gifts, Invasion of the Bane)
 * The Doctor says "I've had a good innings" when he prepares to meet his potential end. The Sixth Doctor said this right before regenerating in two differing accounts, AUDIO: The Brink of Death and PROSE: Spiral Scratch.
 * The Doctor repeats the phrase "tick-tock" while contemplating his apparent death. During his previous incarnation's life, the Peg Dolls' nursery rhyme also used the phrase for the same purpose (TV: Night Terrors, The Wedding of River Song).
 * The Doctor refers to his current regeneration as a "clerical error". It was only made possible by going past the limits of his original regeneration cycle once it was all used up and the Time Lords had given him a new cycle. (TV: The Time of the Doctor)
 * The Doctor states that Earth is under his protection. (TV: The Christmas Invasion, The Eleventh Hour)

DVD releases
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Blu-ray releases
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