Doctor Who Guide: The Deep

The Deep

Series Episode Number: 3

World Premiere: Sun 14 Dec 2025 - 8:33pm GMT [BBC One] (United Kingdom)
Running Time: 44 minutes 14 seconds

3.58 Million (UK)

Barclay makes a terrifying descent into the world of Homo Aqua. Back on the land, Kate stands alone as Downing Street conspires with the army to change the course of the war.

Characters
Barclay Pierre-Dupont		Russell Tovey
Salt		Gugu Mbatha-Raw
Kate Stewart		Jemma Redgrave
General Austin Pierce		Colin McFarlane
Ted Campbell		William Gaminara
Captain Louise Mackie		Hannah Donaldson
Min Tso		Mei Mac
Ravi Singh		Manpreet Bachu
Shirley Bingham		Ruth Madeley
Captain Daniel Gaitz		John Addison
Barbara Pierre-Dupont		Ann Akinjirin
Kirby Pierre-Dupont		Cat Gannon
Commander Olivia Harper		Teri Ann Bobb-Baxter
Prime Minister Harry Shaw		Vincent Franklin
Sir Keith Spears		Patrick Baladi
General Dominique Dussolier		Barbara Probst
General Oscar Gunsberg		Stewart Alexander
Priya Lakhani		Seeta Indrani
Colonel Christofer Ibrahim		Alexander Devrient
Steve Chesney		George Robinson
Corporal Jane Hart		Catherine Garton
Homo Aqua		Gethin Alderman
Homo Aqua		Charles Sandford
Stunts		Liam Carey
Stunts		Zoe Fry
Stunts		Leo Woodruff

Production Team
Writer		Pete McTighe
Created by		Russell T Davies
Director		Dylan Holmes Williams
Producer		Edoardo Ferretti
Executive Producer		Joel Collins
Executive Producer		Pete McTighe
Executive Producer		Russell T Davies
Executive Producer		Julie Gardner
Executive Producer		Jane Tranter
Production Executive For BBC Studios		John Hamer
Director of Production		Emily Russell
Senior Production Executive		Gabriella Ricci
Head of Legal and Business Affairs		Beth Wyllie
Senior Business Affairs and Legal Executive		Ifty Khan
Finance Director		Mary Furlong
Production Finanace Manager		Sean Kenneally
Line Producer		Carolyn Parry-Jones
Director of Photography		Dale Elena McCready
Production Designer		Julian Luxton
Production Designer		Erica Mcewan
Casting Director		Andy Pryor CDG
Editor		Tim Hodges
Music By		Lorne Balfe
Costume Designer		Rachael Walsh
Hair & Make-up Designer		Mirna Curak
Financial Controller		Simon Wheeler
Post Production Producer		Portia Napier
Location Manager		Finlay Bradbury
Sound Recordist		Alex Thompson
Co-Producer		Robyn Paiba
2nd Unit Director		Louis Bhose
2nd Unit Director of Photography		Adam Lyons
Assistant Producer		Scott Handcock
Script Executive		Bethan Evans
Stunt coordinator		Derek Lea
Movement Choreographer		Paul Kasey
Intimacy Coordinator		David Thackeray
Military Adviser		Paul Biddiss
Access Cordinator		Julie Fernandez
Scientific Advisor		David Hone
Title Sequence		Painting Practice
1st Assistant Director		Geriant Havard Jones
Title Sequence		Automatik VFX
Second Assistant Director		Sara Evans
Crowd 2nd Assistant Director		Gwawr Keyworth
Third Assistant Director		Jennifer Day
Base Runner		Sam Griffiths
Floor Runner		Callum Lynch
Floor Runner		Jamal Price
Runner		Harrison Foot
Runner		Emma Kaler
SAW Assiatant Director Trainee		Lucy Morris
Production Manager		Benjamin Jenkins
Production Coordinator		Hannah Cross
Production Coordinator		Lauren Marks
Travel and Accomadation Coordinator		Beth Robinson
Contracts Coordinator		Florence Trott
Production Secretary		Amelia Beer
Production Management Assiatant		Tom Maghie
Production Office Runner		Adam Cottrell
SAW Production Trainee		David Ieuan Evans
Producer's Assistant		Abdoul Razak Ceesay
Assistant		Dee Brooker
Assistant		Kaleigh O'Boyle
Assistant		Joshua MG Thomas
Assistant		Sophie-May Twose
Sustainability		Jess Gow
1st Assistant Accountant		Lisa Lloyd
Payroll Accountant		Liz Ward
AP Assistant Accountant		Andrew Clarke
PC Assistant Accountant		Adrienne Walker
Accounts Trainee		Abdale Yassin
Port Production Accounts		Reel Figures Ltd
Catering		Scene Cuisine
Location Cleaning		Event Clean
Transport		Tuksy Cahuffeurs
Facilities		Translux
Sustainability		Picture Zero
Clearences		Reviewed and Cleared
Unit Location Manager		Rhys Griffiths
Location Manager		Daniel Wellstead
Assistant Unit Manager		Nick Smith
Assistant Location Manager		Hannah Good
Assistant Location Manager		Daisy Maddison
Location Coordinator		Anthony Williams
Location Assistant		Laura Davies
Location Assistant		James Troake
Unit Assistant		Kieran Gough
Studio Manager		Lloyd Di Mauro
Assistant Location Manager		Robin Selby
Health and Safety		John Fillingham
Health and Safety		Matthew Barry
Health and Safety		Terry Davis
Fire Safety		Kevin Owen
Medic		Laura Hinton
Medic		Daniel Taylor
A Camera Operator		Zoe Goodwin-Stuart
B Camera Operator		James Anderson
A Ist Assistant Camera		Jonny Treherne
A Ist Assistant Camera		Gethin Williams
A 2nd Assistant Camera		Tom Fears
B 2nd Assistant Camera		Clare Phoenix
Central Loader		Josh Greenway
A Camera Trainee		Vicky Rigbye
B Camera Trainee		Mandy De Groot
Key Grip		Sean Cronin
Best Boy Grip		Aaron Williams
B Camera Grip		Ashleigh Whitfield
Grip Trainee		Cameron Muir
Grip Trainee		Owen Thomas
Crane Tech		James Duffy
Digital Imaging Technician		Nick Everett
Data Manager		Dave Buckley
Video Operator		Christian Roberts
Video Assistant		Louis Hudson
DIT Trainee		Clara McShane
Video Trainee		Praveen Balaganesh
Drones London		Cineaero
Drones New York		Xizmo Media
Script Supervisor		Jennifer Grant
Script Supervisor Trainee		Helen Rose
1st Assistant Sound		Ramon Pyndiah
2nd Assistant Sound		Alex Gordon
Sound Trainee		Harri Pain
Gaffer		Ben Griffiths
Best Boy		Owen Richards
Rigging Gaffer		Jonathan Down
Rigging Desk Operator		Alan King
Lighting Console Operator		Tom North-Davies
Electrician		Scott Burchell
Electrician		Matthew Challenger
Electrician		Johanthan Cox
Electrician		Mark Day
Electrician		Josh Thomas
Electrician		Jamie Venn
Rigging		Shadow Rigging
Supervising Art Director		Holly McCarthy
Art Director		Rebecca Gresham
Art Director		Hattie Gent
Overseas Location Art Director		Fran Norburn
Assistant Art Director		Cleo Andriola
Standby Art Director		Brad Perry
Set Director		Adrian Anscombe
Production Buyer		Ben Morris
Assistant Set Decorator		Taymer Lee
Assistant Set Decorator		Billie-Blue Williams
Action Props Buyer		Lois Drage
Assistant Buyer		Harriet Wall
Petty Cash Buyer		Sandra Gustafsson
Petty Cash Buyer		Llunos Jones
Petty Cash Buyer		Charlie Shelley
Action Vehicles Coordinator		Rachel Polsom
Lead Concept Artist		Nandor Moldovan
Junior Concept Artist		Jordon Reynolds
Graphic Designer		Georgie O'Boy
Junior Graphic Designer		Aled Llyr Griffiths
Fabrication Draughtsperson		Lakota Gunter
Junior Draughtsperson		Amy Maguire Lewis
Art Department Coordinator		Jacob Lucy
Art Department Assistant		Joanna Wezik
Art Department Apprentice		Jordon Williams
Vehicles supplied by		TLO Film Services
Armourers		Noel Francis
Armourers		Toby Francis
Armourers		John Raggett
Prop Master		Paul Aitkin
Storeperson		Geraint Williams
Standby Props		Luke Hudson
Standby Props		James Lockett
Dressing Chargehand		Lee Radford
Dresser		Mike Elkins
Dresser		Ieuan Parker
Dresser		Lee Price
Standby Painter		Warren Bevan
Lead Fabricator		Barry Jones
Senior Fabricator		Paul Mazonas
Standby Carpenter		Joshua Stone
HOD Scenic		Mike Fischetti
Construction		Soul Set Construction
Costume Supervisor		Peter Paul
Assistant Costume Supervisor		Georgina Illingworth
Crowd Costume Supervisor		Terry Herfield
Assistant Crowd Costume Supervisor		Molly O'Brien
Wardrobe Supervisor		Jessica Zammit
Costiume Standby		Mairead Harris
Costiume Standby		Nisha Williams
Seamstress		Melissa Humphries
Costume Trainee		Mariella Bucci
Costume Trainee		Theo Wyatt
Make Up and Hair Supervisor		Tina Jesenkovic
Crowd Make Up and Hair Supervisor		Joanne McNaughton
Make Up and Hair Artist		Jana Plajer Lewis
Make Up and Hair Artist		Lalah Mitchell
Make Up and Hair Artist		Bethan Shakespeare
Junior Make Up and Hair Artist		Madiosn Garland
Crowd Make Up and Hair Artist		Connie Bishop
Crowd Make Up and Hair Artist		Damian Thomas
Crowd Make Up and Hair Artist		Amanda Warburton
Crowd Junior Make Up and Hair Artist		Mica Curry
Crowd Junior Make Up and Hair Artist		Jess Manning
Crowd Junior Make Up and Hair Artist		Tia-Rose Warsama
Crowd Make Up and Hair Trainee		Manon Niamh Evans
Make Up and Hair Trainee		Rebekah Anne Edwards
On set Supervisor		Georgia Brown
Casting Associate		Becky Rossmaur
Casting Assistant		Kristian Wall
Stills Photographer		Ikram Ahmed
Stills Photographer		Samuel Dore
Stills Photographer		Alistair Heap
Stills Photographer		James Pardon
1st Assistant Editor		Joseph Keirle
2nd Assistant Editor		Samuel Meller
VFX Editor		Catrin Rees
VFX Assistant Editor		Yas Downes
Edit Trainee		Stefano Navarra
Sound		Steve Browell
Re-Recording Mixer		Paul McFadden
Crowd Adr		Wild Adr
Online Editor		Monika Bednarczyk
Colourist		Gareth Spensley
Post Production Coordinator		Stephanie Guiel
VFX Coordinator		Risto Kaljuvee
Post Paperwork		Ilana Epstein
VFX Supervisor		Dan May
VFX Supervisor		Sebastian Barker
VFX On Set Supervisor		Nicky Walsh
VFX Production Manager		Jenny Morgan
VFX Data Wrangler		Sarah-Hoor Aboubakar
VFX Data Wrangler		Ralph Sansum
VFX Trainee		Gina Curson
Additional VFX		BBC Wales Graphics
Special Effects		Real SFX
Creature FX		Millennium FX
Colour		Company 3
Audio Post		Bang Post Production
Post Production Facility		Gorilla
Music performed by		BBC National Orchestra of Wales
Music Supervisor		Ollie White
Assistant Music Supervisor		Estera Leedham
Music Editor		Marnie Davidge
Sea Devils Created by		Malcolm Hulke

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Plastic Apocalypse

The Witch of the Waterfall

The Deep

3.58 Million (UK)

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