Written by Steven Moffat and directed by Ben Wheatley (Sightseers), the episode features returning guest stars Neve McIntosh as Madame Vastra, Catrin Stewart as Jenny and Dan Starkey as Strax.

Moffat previously teased: “‘Deep Breath’ is a big introduction—he’s the new Doctor. I suppose it feels a bit like a character piece, but there’s plenty of action and nonsense and jeopardy, as there ever is in Doctor Who.”

> Here’s everything we know about Series 8 so far.

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