Ashildr – Maisie Williams
Odin – David Schofield
Nollarr – Simon Lipkin
Chuckles – Ian Conningham
Lofty – Tom Stourton
Limpy – Alastair Parker
Hasten – Murray McArthur
Heidi – Barnaby Kay
Mire – Jon Davey
The Doctor – David Tennant (archive footage)
Donna Noble – Catherine Tate (archive footage)
Lobus Caecilius – Peter Capaldi (archive footage)
General production staff
Line Producer – Tracie Simpson
Production Manager – Steffan Morris
Location Manager – Nick Clark
Unit Manager – Iestyn Hampson-Jones
Production Co-ordinator – Adam Knopf
Assistant Production Co-ordinator – Sandra Cosfeld
Production Assistants – Hannah Jones, Jamie Shaw
Unit Drivers – Sean Evans, Kyle Davies
Production Accountant – Simon Wheeler
Camera and lighting department
1st Assistant Director – Scott Bates
2nd Assistant Director – James DeHaviland
3rd Assistant Director – Danielle Richards
Assistant Directors – Chris Thomas, Gareth Jones, Natalia Alexeeva
Script Supervisor – Steve Walker
Camera Operator – Mark McQuoid
Focus Pullers – Jonathan Vidgen, Steve Rees
Grip – John Robinson
Camera Assistants – Cai Thompson, Matthew Lepper, Scott Waller
Gaffer – Mark Hutchings
Best Boy – Andrew Gardiner
Electricians – Andrew Williams, Bob Milton, Gareth Sheldon, Gawain Nash, Rob Fernandes
Art department
Supervising Art Director – Dafydd Shurmer
Production Buyer – Sarah Free
Set Decorator – Adrian Anscombe
Props Buyer – May Johnson
Storyboard Artist – Mike Collins
Concept Artist – Chris Lees
Graphic Artist – Matthew Clark
Standby Props – Liam Collins, Ian Davies
Standby Carpenter – Paul Jones
Standby Art Director – Nick Murray
Prop Master – Paul Smith
Props Chargehand – Kyle Belmont
Props Storeman – Jamie Southcott
Props Driver – Gareth Fox
Props Makers – Alan Hardy, Jamie Thomas
Construction Manager – Terry Horle
Construction Chargehand – Dean Tucker
Practical Electricians – Christian Davies, Austin Curtis
Costume department
Costume Supervisor – Simon Marks
Assistant Costume Designer – Georgie Sayer
Costume Assistants – Andie Mear, Ian Fowler, Jenny Tindle
Make-up and prosthetics
Make-up Supervisor – Sara Angharad
Make-up Artists – Megan Bowes, James Spinks
Prosthetics – Millennium FX
Movement
Stunt Co-ordinators – Crispin Layfield, Gordon Seed
Choreographer – Ailsa Berk
Casting
Casting Associate – Alice Purser
General post-production staff
Post-production Supervisor – Samantha Price
Assistant Editors – Becky Trotman, Robbie Gibbon
On-line Editor – Mark Hardyman
Special and visual effects
VFX Editor – Dan Rawlings
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
Foley Editor – Jamie Talbutt
In a Viking village under attack by alien warriors, the Doctor and Clara help defend the people. Clara inspires the Doctor to embrace compassion over strategy. A young woman named Ashildr is mortally wounded, and the Doctor uses alien technology to grant her immortality. This decision has far reaching consequences, as he realizes he may have altered history.
The Doctor is captured by Viking warriors and must help them face alien warriors called the Mire. He ends up inspiring the villagers through a story of heroism.
To help the Vikings fight back, the Doctor takes inspiration from their fears and legends, effectively creating the image that later becomes the myth of a legendary warrior.
Clara plays a key role in encouraging the Doctor to act and helps him connect emotionally with the villagers.
The Mire are advanced alien mercenaries who use technology to enhance themselves and conquer other civilizations.
The episode explores legacy, heroism, and the idea that stories and identity can shape reality.
