The War Between The Land And The Sea

Plot

The killing of a Sea Devil -- now dubbed homo aqua or Aquakind -- at the hands of the crew of a fishing trawler triggers a massive response from its people. Kate Lethbridge-Stewart and UNIT race to organise a diplomatic conclave in London in the hope of negotiating an armistice. But the process is immediately upended when Salt, the homo aqua emissary, demands that humanity be represented by Barclay Pierre-Dupont, a lowly clerk in UNIT's transportation department. As Barclay struggles with his unexpected new role, homo aqua unleash the devastating power of their advanced technology, and sinister forces amongst the nations of the world maneuver to exploit the crisis.

Original Transmission
1: Homo Aqua
Date 7th Dec 2025
Time 8.30pm
Duration 43'30"
Viewers (more) 4.3m (14th)
· BBC1/HD
   7 days 4.3m
   28 days t/b/a
Appreciation t/b/a
2: Plastic Apocalypse
Date 7th Dec 2025
Time 9.15pm
Duration 47'22"
Viewers (more) 3.6m (22nd)
· BBC1/HD
   7 days 3.6m
   28 days t/b/a
Appreciation t/b/a
3: The Deep
Date 14th Dec 2025
Time 8.30pm
Duration 44'14"
Viewers (more) 3.7m (12th)
· BBC1/HD
   7 days 3.7m
   28 days t/b/a
Appreciation t/b/a
4: The Witch Of The Waterfall
Date 14th Dec 2025
Time 9.20pm
Duration 45'24"
Viewers (more) 3.2m (33rd)
· BBC1/HD
   7 days 3.2m
   28 days t/b/a
Appreciation t/b/a
5: The End Of The War
Date 21st Dec 2025
Time 8.05pm
Duration 53'41"
Viewers (more) 3.1m (27th)
· BBC1/HD
   7 days 3.1m
   28 days t/b/a
Appreciation t/b/a


Cast
Barclay Pierre-Dupont
Russell Tovey
Salt
Gugu Mbatha-Raw (bio)
Kate Lethbridge-Stewart
Jemma Redgrave (bio)
(more)
General Austin Pierce
Colin McFarlane
Agustin
Rodo Gener
Kirby Pierre-Dupont
Cat Gannon
Sergeant Hana Chakri
Francesca Corney
Barbara Pierre-Dupont
Ann Akinjirin
Captain Louise Mackie
Hannah Donaldson
Corporal Pip Morgan
Henry Nott
Colonel Tariq Hashim
Waleed Hammad
Min Tso
Mei Mac
Private Bushra Abdallah
Fia Hadeed
Corporal Jane Hart
Catherine Garton
Steve Chesney
George Robinson
BBC Newsreader
Jennifer Jones
Chinese Newsreader
Edward Wu
Trinity Wells
Lachele Carl
General Oscar Gunsberg
Stewart Alexander
General Dominique Dussolier
Barbara Probst
Shirley Bingham
Ruth Madeley (bio)
Prime Minister Harry Shaw
Vincent Franklin
Colonel Christofer Ibrahim
Alexander Devrient
Sir Jonathan Hynes
Adrian Lukis
Jackson St Lewis
Delroy Brown
Roger Trevithick
Leo Anthony
Homo Aqua
Gethin Alderman
Charles Sandford
UK Reporter
Alys Metcalf
Felix Gladstock
Tim Wallers
Dr Kadie Bangura
Lucy Vandi
Marko Novak
Benito Curteanu
Sir Keith Spears
Patrick Baladi
Esther Spears
Cordelia Bugeja
Rose-Marie Hunt
Antonia Bernath
Platoon Leader
Iestyn Arwel
Russian Newsreader
Zina Ida
UK Newsreader
Waseem Mirza
USA Reporter
Shanice Archer
Australian Diplomat
Douglas Hansell
Ted Campbell
William Gaminara
Sierra Leone Delegate
Ray Sesay
Salt (Male)
Joshua Sinclair-Evans
Ravi Singh
Manpreet Bachu
Captain Daniel Gaitz
John Addison
Commander Olivia Harper
Teri Ann Bobb-Baxter
Priya Lakhani
Seeta Indrani
Chappie Bristow
Landry Adelard
Tide
Samuel Oatley
Lad
Jolyon Benson
Sergeant Abrams
Samuel Edwards
Psychiatrist
Carolin Stoltz
Dr Bannerjee
Devesh Kishore
Iniko Bello
Eddie Elliott
Willem
Alexander Tol
Chinese Reporter
Quanna Luo Masterson
Jogger
Adam Howden


Crew
Written by
Russell T Davies (bio) (episodes 1, 5)
Pete McTighe (bio) (episodes 2, 3, 4)
Directed by
Dylan Holmes Williams (bio)
(more)

Created by
Russell T Davies (bio)
Produced by
Edoardo Ferretti
Executive Producers
Joel Collins
Pete McTighe (bio)
Russell T Davies (bio)
Julie Gardner
Jane Tranter
Stunt Coordinator
Derek Lea
2nd Stunt Coordinator
James Grogan
Stunt Performers
Alex Cahill
Liam Carey
Mike Denton
Clayton Grover
Matt Sherren
Leo Woodruff
Levan Doran
Andy Eadie
Darin Ellie
Pete Ford
Lucy Fowl
Paul Ginns
Joseph Grogan
Nadia Hansell
Gaby Harman
Maria Hypolite
Robbie Keane
Christina Low
Chus Lucas
Georgia Munroe
Chris Pollard
Jodie Saunders
Ross Upton
Zoe Fry
Christian Knight
Sonny Louis
Chris Morrison
Shane Steyn
Richard Wheeldon
Steve Whitley
Mark Archer
Jessica Barfoot
Anna Benton
Olly Lloyd
Sarah Lochlan
Erol Mehmet
Martin Pemberton
Eldredd Wolf
Wire Supervisor
Max Schofield
Movement & Creature Choreographer
Paul Kasey
Dialect Coach
Marilyn Le Conte
Intimacy Coordinators
David Thackeray
Sita Thomas
Military Advisor
Paul Biddiss
Access Coordinator
Julie Fernandez
Scientific Advisor
Dr David Hone
1st Assistant Director
Geraint Havard Jones
2nd Assistant Director
Sara Evans
Crowd 2nd Assistant Director
Gwawr Keyworth
3rd Assistant Director
Jennifer Day
Base Runner
Sam Griffiths
Floor Runners
Callum Lynch
Jamal Price
Stand In / Runners
Harrison Foot
Emma Kaler
SAW Assistant Director Trainee
Lucy Morris
Production Manager
Benjamin Jenkins
Production Coordinators
Hannah Cross
Lauren Marks
Travel & Accommodation Coordinator
Beth Robson
Contracts Coordinator
Florence Trott
Production Secretary
Amelia Beer
Production Management Assistant
Tom Maghie
Production Office Runner
Adam Cottrell
SAW Production Trainee
David Ieuan Evans
Producer & Director's Assistant
Abdoul Razak Ceesay
Director's Assistant
Lucy Jones
Executive Assistant to Jane Tranter
Dee Brooker
Executive Assistant to Julie Gardner
Kaleigh O'Boyle
Executive Assistant to Russell T Davies
Joshua MG Thomas
Executive Assistant to Joel Collins
Sophie-May Twose
Sustainability Coordinator
Jess Gow
1st Assistant Accountant
Lisa Lloyd
Payroll Accountant
Liz Ward
AP Assistant Accountant
Andrew Clarke
PC Assistant Accountant
Adrienne Walker
SAW Accounts Trainee
Abdale Yassin
Post Production Accountants
Reel Figures Ltd
Catering by
Scene Cuisine
Location Cleaning by
Event Clean
Transport provided by
Tuksy Chauffeurs
Facilities provided by
Translux
Sustainability Consultants
Picture Zero
Clearances by
Reviewed And Cleared
Unit Location Manager
Rhys Griffiths
Location Manager
Daniel Wellstead
Assistant Unit Manager
Nick Smith
Assistant Location Managers
Hannah Good
Daisy Maddison
George Cornelius
Alex Moore
Location Coordinator
Anthony Williams
Location Assistants
Laura Davies
James Troake
Unit Assistant
Kieran Gough
Studio Manager
Lloyd Di Mauro
Assistant Studio Manager
Robyn Selby
Department Health & Safety Manager
John Fillingham
Health & Safety Managers
Matthew Barry
Terry Davies
Fire Safety Supervisor
Kevin Owen
Unit Medics
Laura Hinton
Daniel Taylor
A Camera Operator
Zoe Goodwin-Stuart ACO, BSC Assoc, SOC
B Camera Operator
James Anderson ACO
A Camera 1st Assistant Camera
Jonny Treherne
B Camera 1st Assistant Camera
Gethin Williams
A Camera 2nd Assistant Camera
Tom Fears
B Camera 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 Trainees
Owen Thomas
Cameron Muir
Crane Tech
James Duffy
Digital Imaging Technician
Nick Everett
Data Manager
David Buckley
Video Operator
Christian Roberts
Video Assistant
Louis Hudson
SAW DIT Trainee
Ciara McShane
SAW Video Trainee
Praveen Balaganesh
London Drone Company
Cineaero
New York Drone Company
Xizmo Media
Welsh Drone Company
Aerial Craft
Script Supervisor
Jennifer Grant
SAW Script Supervisor Trainee
Helen Rose
1st Assistant Sound
Ramon Pyndiah
2nd Assistant Sound
Alex Gordon
Sound Trainee
Harri Pain
SAW Sound Trainee
Charo Aristegui Valduvi
Gaffer
Ben Griffiths
Best Boy
Owen Richards
Rigging Gaffer
Jonathan Down
Rigging Desk Operator
Alan King
Lighting Console Operator
Tom North-Davies
Electricians
Scott Burchell
Matthew Challenger
Jonathan Cox
Mark Day
Josh Thomas
Jamie Venn
Rigging
Shadow Rigging
Supervising Art Director
Holly McCarthy
Art Directors
Rebecca Gresham
Hattie Gent
Overseas Location Art Director
Fran Norburn
Assistant Art Director
Cleo Andriola
Standby Art Director
Brad Perry
Set Decorator
Adrian Anscombe
Production Buyer
Ben Morris
Assistant Set Decorators
Taymar Lee
Billie-Blue Williams
Action Props Buyer
Lois Drage
Assistant Buyer
Harriet Wall
Petty Cash Buyers
Sandra Gustafsson
Llinos Jones
Charlie Shelley
Action Vehicles Coordinator
Rachael Polsom
Lead Concept Artist
Nandor Moldovan
Junior Concept Artist
Jordan 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
Sgil Cymru Art Department Apprentice
Jordan Williams
Action Vehicles supplied by
TLO Film Services
Animals provided by
Pets On Set
APA Animal Welfare Consultant
Meg Owen
Armourers
Noel Francis
Toby Francis
John Raggett
Props Master
Paul Aitken
Storeperson
Geraint Williams
Standby Props
Luke Hudson
James Lockett
Dressing Chargehand
Lee Radford
Dressers
Mike Elkins
Ieuan Parker
Lee Price
Standby Painters
Dave Tremlett
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 Designers
Poppy Moorcroft
Georgina Illingworth
Crowd Costume Supervisor
Terry Herfield
Crowd Costume Assistant / Standby
Molly O'Brien
Wardrobe Supervisor
Jessica Zammit
Principal Costume Standbys
Mairead Harris
Nisha Williams
Seamstress
Melissa Humphries
SAW Costume Trainees
Mariella Bucci
Theo Wyatt
Make Up & Hair Supervisor
Tina Jesenkovic
Crowd Make Up & Hair Supervisor
Joanne McNaughton
Make Up & Hair Artists
Jana Plajer Lewis
Lalah Mitchell
Bethan Shakespeare
Junior Make Up & Hair Artist
Madison Garland
Crowd Make Up & Hair Artists
Connie Bishop
Damian Thomas
Amanda Warburton
Crowd Junior Make Up & Hair Artist
Mica Curry
Jess Manning
Tia-Rose Warsama
SAW Crowd Make Up & Hair Trainee
Manon Niamh Evans
SAW Make Up & Hair Trainee
Rebekah Anne Edwards
On Set Supervisor - Creatures
Georgia Brown
Casting Associate
Becky Rossmaur
Casting Assistant
Kristian Wall
Stills Photographers
Ikram Ahmed
Samuel Dore
Alistair Heap
James Pardon
1st Assistant Editor
Joseph Keirle
2nd Assistant Editor
Samuel Meller
VFX Editor
Catrin Rees
VFX Assistant Editor
Yas Downes
SAW Edit Trainee
Stefano Navarra
Sound Designer
Steve Browell
Re-Recording Mixer
Paul McFadden
Crowd ADR
Wild ADR
Online Editor
Monika Bednarczyk
Colourists
Gareth Spensley
Gareth Thomas
Post Production Coordinator
Stephanie Guiel
VFX Coordinator
Risto Kaljuvee
Post Paperwork
Ilana Epstein
VFX Supervisor
Dan May
Sebastian Barker
VFX On Set Supervisor
Nicky Walsh
VFX Production Manager
Jenny Morgan
VFX Data Wranglers
Sarah-Hoor Aboubakar
Ralph Sansum
SAW VFX Trainee
Gina Curson
Creature / Concept Design and VFX
Painting Practice
Visual Effects
Automatik VFX
Additional VFX
BBC Wales Graphics
Special Effects
Real SFX
Creature FX
Company 3
Millennium FX
Colour by
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
Title Sequence Design
Painting Practice &
Automatik VFX
Sea Devils originally created by
Malcolm Hulke (bio)

Spanish Unit
Production Services in Spain provided by
Ceres Films, a Palma Pictures Company
Production Executive
Mike Day
Head of Production Palma Pictures
Yousaf Bokhari
Line Producer
Patricia de la Uz
Production Manager
Joe Templeton
Assistant Production Manager
Mar Espada
Production Coordinator
Nuria Mesquida Helf
Production Accountant
Dani Pérez
Health & Safety Supervisor
Mauro Gambin
Location Manager
Dani Sampedro
Assistant Location Manager
Luis Vidal

Co-Producer
Robyn Paiba
2nd Unit Director
Louis Bhose
2nd Unit Director Of Photography
Adam Lyons
Assistant Producer
Scott Handcock
Script Executive
Bethan Evans
Costume Designer
Rachel Walsh
Make Up & Hair Designer
Mirna Čurak
Financial Controller
Simon Wheeler
Post Production Producer
Portia Napier
Supervising Location Manager
Finlay Bradbury
Sound Recordist
Alex Thompson, AMPS
Line Producer
Carolyn Parry-Jones
Director Of Photography
Dale Elena McCready BSC NZCS
Production Designer
Julian Luxton
Erica McEwan
Casting Director
Andy Pryor CSA, CDG
Editors
Tim Hodges BFE
Mdhamiri Á Nkemi BFE
Music by
Lorne Balfe

For Bad Wolf
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 Finance Manager
Sean Kenneally

Production Executive for BBC Studios
John Hamer
Executive Producer for the BBC
Nick Lambon

Updated 5th January 2026