Mrs Gillyflower – Dame Diana Rigg
Ada – Rachael Stirling
Jenny – Catrin Stewart
Madame Vastra – Neve McIntosh
Strax – Dan Starkey
Angie – Eve De Leon Allen
Artie – Kassius Carey Johnson
Edmund & Mr Thursday – Brendan Patricks
Amos – Graham Turner
Effie – Olivia Vinall
Abigail – Michelle Tate
Urchin Boy – Jack Oliver Hudson
General production staff
Production Executive – Julie Scott
Script Producer – Denise Paul
Line Producer – Diana Barton
Location Manager – Iwan Roberts
Production Accountant – Jeff Dunn
Camera and lighting department
1st Assistant Director – Nick Brown
2nd Assistant Director – Heddi-Joy Taylor-Welch
3rd Assistant Director – Delmi Thomas
Assistant Director – Danielle Richards
Gaffer – Mark Hutchings
Best Boy – Pete Chester
Costume department
Make-up and prosthetics
Prosthetics – Millennium FX
Movement
Stunt Co-ordinator – Crispin Layfield
Stunt Performers – Stephanie Carey, Daniel Euston
General post-production staff
Post-production Supervisor – Nerys Davies
Post-production Co-ordinator – Marie Brown
Special and visual effects
Colourist – Mick Vincent
Sound
Sound Recordist – Deian Ll┼╖r Humphreys
Dubbing Mixer – Tim Ricketts
Supervising Sound Editor – Paul McFadden
Sound Effects Editor – Paul Jefferies
Sound Editor – Doug Sinclair
In Victorian Yorkshire, the Doctor and Clara investigate a mysterious illness turning people red. They uncover a plot by Mrs Gillyflower to purify humanity using a parasite. Assisted by Jenny, Vastra, and Strax, they stop the scheme. The episode blends gothic horror with humour, highlighting the DoctorΓÇÖs allies and their investigative skills.
ΓÇ£The Crimson HorrorΓÇ¥ follows the Eleventh Doctor, Clara Oswald, and the Paternoster Gang investigating a Victorian town where people are being turned into wax-like corpses.
Sweetville is an industrial settlement run by Mrs Gillyflower, hiding a secret factory that produces a deadly red chemical substance.
Mrs Gillyflower is the main antagonist, using industrial technology and propaganda to control the town while working toward a larger destructive plan.
The Crimson Horror is a chemical process that transforms human bodies into wax-like states, effectively removing individuality and life.
This episode continues the Victorian-era storyline in Doctor Who, alongside the Paternoster Gang and the Eleventh Doctor.
