Missy – Michelle Gomez
Kar – Rebecca Benson
Ban – Daniel Kerr
Lucius – Brian Vernel
Simon – Rohan Nedd
Thracius – Ben Hunter
Vitus – Sam Adewunmi
Cornelius – Bill Matthews
Marcus – Aaron Phagura
Judy – Jocelyn Brassington
Brother – Lewis McGowan
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 Accountants – Justine Wooff, Matthew Fisher
Camera and lighting department
1st Assistant Director – Simon Morris
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, Andrew Williams
Art department
Supervising Art Director – Paul Spriggs
Art Director – Tim Overson
Art Department Accountant – Bethan Griffiths
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 – Lawrence Hearn
Standby Props – Matt Ireland, Jonathan Barclay, Scott Howe
Standby Carpenter – Paul Jones
Prop Hands – Nigel Magni, Matt Watts
Standby Art Director – Nick Murray
Rigging – Shadow Scaffolding
Standby Rigger – Nigel Owen
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
Draughtspersons – Matt Sanders, 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-ordinators – Crispin Layfield, Gordon Seed, Dani Biernat
Stunt Performers – Maria Hippolyte, Mens-Sana Tamakloe
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 – Mark Hardyman, Geraint Pari Huws
Assistant On-line Editor – Christine Kelly
Special and visual effects
VFX Editor – Dan Rawlings
Special Creature Effects & Prosthetics – Millennium FX
Colourist – Gareth Spensley
Model Makers – Alan Hardy, Jamie Thomas
Sound
Sound Recordist – Deian Ll┼╖r Humphreys
Dubbing Mixers – Mark Ferda, Darran Clement
Sound Maintenance Engineers – Tam Shoring, Christopher Goding
Dialogue Editor – Helen Dickson
ADR Editor – Matthew Cox
Sound Effects Editor – Harry Barnes
Foley Editor – Simon Clement
Foley Artist – Julie Ankerson
In ancient Scotland, a Roman legion has vanished near a mysterious portal. The Doctor and Bill discover creatures that consume light and must be contained. Local tribes have been guarding the portal for generations. Bill helps continue the tradition, while the Doctor ensures the balance is maintained between worlds.
The Doctor, Bill Potts, and their companion travel to ancient Scotland where Roman soldiers have disappeared.
They are interdimensional creatures that consume light and emerge through a portal that must be controlled to prevent devastation.
The two groups are in conflict, but they must learn to cooperate to contain the threat from the Eaters of Light.
The Doctor chooses to seal himself in the portal temporarily to stabilize it, showing great personal sacrifice.
The episode explores unity, sacrifice, cultural conflict, and the importance of cooperation across differences.
