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10.4 Knock, Knock

Broadcast Details

Series / Episode No.
Episode Title
Transmission Date
Duration
Ratings (Millions)
Season
Doctor
Producer(s)
Script Editor
Written By
Directed By
10
Twelfth / Peter Capaldi
Nikki Wilson
Nick Lambon
Mike Bartlett
Bill Anderson

Regular Cast

The Doctor — Twelfth / Peter Capaldi

Guest Cast

The Landlord – David Suchet
Eliza – Mariah Gale
Shireen – Mandeep Dhillon
Felicity – Alice Hewkin
Paul – Ben Presley
Harry – Colin Ryan
Pavel – Bart Suavek
Estate Agent – Sam Benjamin
Young Landlord – Tate Pitchie-Cooper

Production Team

General production staff

Head of Production – Gordon Ronald
Production Executive – Tracie Simpson
Line Producer – Steffan Morris
Production Manager – Adam Knopf
Location Manager – Nicky James
Unit Manager – Beccy Jones
Production Co-ordinator – Sandra Cosfeld
Assistant Production Co-ordinator – Nicola Chance
Production Assistants – Virginia Bonet, Jamie Shaw
Unit Drivers – Sean Evans, Kyle Davies
Unit Medic – Glyn Evans
Business Affairs Executive – Carol Griggs
Production Accountant – Simon Wheeler
Assistant Accountant – Justine Wooff

Camera and lighting department

1st Assistant Director – Sarah Davies
2nd Assistant Director – James DeHaviland
3rd Assistant Director – Christopher J Thomas
Assistant Directors – Rhun Llewelyn, Lauren Pate
Script Supervisor – Nicki Coles
Camera Operator – Mark McQuoid
Focus Pullers – Jonathan Vidgen, Elhein De Wet
Grip – John Robinson
Assistant Grip – Sean Cronin
Camera Assistants – Gethin Williams, Drew Marsden, Dan Patounas
Gaffer – Mark Hutchings
Best Boy – Andy Gardiner
Electricians – Gawain Nash, Gareth Sheldon, Bob Milton, Sion Davies

Art department

Supervising Art Director – Henry Jaworski
Art Director – Tim Overson
Art Department Accountant – Alison Harvey
Production Buyer – Jen Saguaro
Set Decorator – Adrian Anscombe
Prop Buyers – Jo Pearce, Charlotte Lailey de Ville
Storyboard Artist – Mike Collins
Concept Artist – Darren Fereday
Graphic Artist – Matt Clark
Standby Props – Matt Ireland, Jonathan Barclay
Standby Carpenter – Paul Jones
Prop Hands – Scott Howe, Nigel Magni, Matt Watts
Standby Art Director – Nick Murray
Rigging – Shadow Scaffolding
Standby Rigger – Colin Toms
Head Scenic Artist – Clive Clarke
Painters – Steve Nelms, John Nelms, Paul Murray, Debby McShane
Storeman – Jamie Southcott
Prop Master – Paul Smith
Props Chargehand – Kyle Belmont
Props Driver – Gareth Fox
Construction Manager – Terry Horle
Construction Chargehand – Dean Tucker
Construction Driver – Jonathan Tylke
Construction Labourer – Jason Tylke
Practical Electricians – Callum Alexander, Austin Curtis
Graphics Assistant – Jack Bowes
Draughtsperson – Kartik Nagar
Chargehand Carpenter – John Sinnott
Carpenters – Tim Burke, Matt Ferry, Chris Daniels, George Rees, Dan Berrow, Tom Berrow, Keith Richards, Campbell Frazer, Joe Painter, Alan Jones, Mike Venables
Title Concept – Billy Hanshaw

Costume department

Costume Supervisor – Kat Willis
Assistant Costume Designer – Zoe Howerska
Costume Assistants – Rebecca Cunningham, Leila Headon, Jenny Tindle
Make-up and prosthetics
Make-up Supervisor – James Spinks
Make-up Artists – Megan Bowes, Lolly Goodship
Movement

Stunt Co-ordinator – Crispin Layfield
Stunt Performer – Karen Teoh
Casting

Casting Associate – Ri McDaid-Wren
Casting Assistant – Louis Constantine

General post-production staff

Post-production Supervisor – Samantha Price
Post-production Co-ordinator – Hannah Jones
Assistant Editors – Becky Trotman, David Davies
On-line Editors – Geraint Pari Huws, Mark Hardyman
Assistant On-line Editor – Christine Kelly

Special and visual effects

VFX Editor – Dan Rawlings
Special Creature Effects & Prosthetics – Millennium FX
Colourist – Gareth Spensley

Sound

Sound Recordist – Deian Ll┼╖r Humphreys
Dubbing Mixer – Mark Ferda
Sound Maintenance Engineers – Tam Shoring, Christopher Goding
Dialogue Editor – Darran Clement
ADR Editor – Matthew Cox
Effects Editor – Harry Barnes
Foley Editor – Simon Clement
Foley Artist – Julie Ankerson

Synopsis

Bill and her friends move into a house with a strange landlord. The house is alive, consuming tenants to sustain a being known as the Landlord, who is revealed to be the son of an alien creature. The Doctor uncovers the truth and frees the trapped victims. The alien mother reclaims her son, ending the cycle and saving BillΓÇÖs friends.

Merchandise Releases

Multimedia

Frequently Asked Questions

What is the premise of Knock Knock?

Bill Potts moves into a strange house with friends, only to discover it is alive and controlled by mysterious wooden creatures.

Who is the Landlord in Knock Knock?

The Landlord, played by David Suchet, is revealed to be protecting his daughter by making a pact with alien wood like entities.

What are the wooden creatures?

They are alien beings that sustain themselves by consuming human life energy and living within the structure of the house.

How does the Doctor solve the problem?

The Doctor helps break the cycle by exposing the truth and allowing the house to collapse naturally.

What themes are explored in Knock Knock?

The episode explores family, sacrifice, trust, and the fear of the unknown hidden within everyday spaces.