Extremis (TV story)

 was the sixth episode of the tenth series of Doctor Who produced by BBC Wales.

Most notably, the episode revealed that was inside the vault beneath St Luke's University.

Synopsis
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Plot
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Cast

 * The Doctor - Peter Capaldi
 * Bill - Pearl Mackie
 * Nardole - Matt Lucas
 * - Michelle Gomez
 * Moira - Jennifer Hennessy
 * Cardinal Angelo - Corrado Invernizzi
 * The Pope - Joseph Long
 * Penny - Ronke Adekoluejo
 * Rafando - Ivanno Jeremiah
 * Piero - Fransesco Martino
 * Pentagon Woman - Alana Maria
 * Nicolas - Laurent Maurel
 * Monk - Jamie Hill
 * Voice of the Monk - Tim Bentinck

Crew
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Story notes
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Ratings
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Filming locations
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Production errors

 * The reflection of a cameraman can be seen on the TV at CERN, when the camera pans in on the bomb countdown just before detonation.

Continuity

 * The Doctor is still suffering from blindness. (TV: Oxygen)
 * The virtual Doctor sits in the Presidents chair in a holographic recreation of the Oval Office. The Eleventh Doctor previously did just that in the real Oval Office. (TV: The Impossible Astronaut)
 * The virtual Doctor uses the sonic sunglasses to send a message. The Doctor used them to get out of an impasse before. (TV: Before the Flood)

DVD releases
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Blu-ray releases
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Digital releases
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