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Doctor Who: The Complete Guide to Knock Knock

Last week, the Doctor and Bill headed to 19th century Britain to investigate a nefarious plot on the frozen River Thames in their third adventure in a row. Tonight in Knock Knock, Bill’s finally back home, but there’s no respite in the present for the Doctor and his new companion. Here’s everything you need to know about tonight’s ep:

Synopsis (Radio Times)

Bill and some of her friends decide to move in together, and find what seems to be the perfect house. However, the absurdly cheap rent, and a decidedly creepy landlord suggest that domestic bliss might not yet be on the cards. The Doctor believes something is seriously wrong with his assistant’s new home, plagued as it is with strange drafts and oddly creaky floorboards, and that’s without considering the ominous tower found at the very heart of the building – one that doesn’t seem to have an entrance.

The international broadcast times for Knock Knock are as follows:

  • UK – Tonight at 7.20pm on BBC One
  • US – Tonight at 9/8C on BBC America
  • Canada – Tonight at 9pm on SPACE
  • Finland – Tomorrow at 11.30am on YLE2
  • New Zealand – Tomorrow at 7.30pm on Prime
  • Australia – Tomorrow at 7.40pm on ABC1
  • Brazil – Tomorrow at 8pm on SyFy
The cast list for Knock Knock is as follows:
  • The Doctor – Peter Capaldi
  • Bill Potts – Pearl Mackie
  • Nardole – Matt Lucas
  • Landlord – David Suchet
  • Eliza – Mariah Gale
  • Shireen – Mandeep Dhillon
  • Harry – Colin Ryan
  • Paul – Ben Presley
  • Felicity – Alice Hewkin
  • Pavel – Bart Suavek
  • Estate agent – Sam Benjamin
Here’s two trailers for the episode:

    And here’s two clips:

    Be sure to stay tuned to The Gallifrey Times after the episode at 8.05pm for a poll where you can share your opinions on the episode, and view trailers for Oxygen!