The thirty-eighth instalment of Doctor Who Extra, Series 9 in 81 Seconds, was attached to the ninth series of Doctor Who. It was released on the official BBC YouTube channel.
Aspects of production covered 
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Additional topics covered Edit
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People interviewed Edit
- Steven Moffat (Heaven Sent)
- Michelle Gomez (The Magician's Apprentice)
- Jenna Coleman (The Witch's Familiar, The Zygon Inversion)
- Paul Kaye (Under the Lake)
- Maisie Williams (The Girl Who Died, Hell Bent)
- Ingrid Oliver (The Zygon Inversion)
- Reece Shearsmith (Sleep No More)
Home video releases Edit
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