Missy – Michelle Gomez
Moira – Jennifer Hennessy
Cardinal Angelo – Corrado Invernizzi
The Pope – Joseph Long
Penny – Ronke Adekoluejo
Rafando – Ivanno Jeremiah
Piero – Francesco Martino
Pentagon Woman – Alana Maria
Nicolas – Laurent Maurel
Monk – Jamie Hill
Voice of the Monk – Tim Bentinck
General production staff
Head of Production – Gordon Ronald
Production Executive – Tracie Simpson
Line Producer – Steffan Morris
Production Manager – Adam Knopf
Location Manager – Iwan Roberts
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, Paul Watkins
Unit Medic – Glyn Evans
Business Affairs Executive – Carol Griggs
Production Accountant – Simon Wheeler
Assistant Accountant – Matthew Fisher
Camera and lighting department
1st Assistant Director – Fletcher Rodley
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
Concept Artist – Darren Fereday
Graphic Artist – Lawrence Hearn
Standby Props – Matt Ireland, Jonathan Barclay
Standby Carpenter – Paul Jones
Prop Hands – Scott Howe, Nigel Magni, Matt Watts
Standby Art Director – Christina Tom
Rigging – Shadow Scaffolding
Standby Rigger – Colin Toms
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
Draughtsperson – Matt Sanders
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-ordinator – Crispin Layfield
Stunt Performer – Troy Kenchington
Choreographer – Ailsa Burke
Casting
Casting Associate – Ri McDaid-Wren
Casting Assistant – Louis Constantine
General post-production staff
Post-production Supervisor – Samantha Price
On-line Editors – Geraint Pari Huws, Mark Hardyman
Assistant On-line Editor – Christine Kelly
Special and visual effects
Special Creature Effects & Prosthetics – Millennium FX
Colourist – Gareth Spensley
Model Makers – Alan Hardy, Jamie Thomas
Sound
Sound Recordist – Deian Ll┼╖r Humphreys
Sound Maintenance Engineers – Tam Shoring, Christopher Goding
The Vatican summons the Doctor to read a forbidden text known as the Veritas, which drives readers to suicide. The Doctor learns the world is a simulation created by alien Monks as a test. Before the simulation ends, he sends a message to the real world. Missy, imprisoned in a vault, becomes part of the unfolding events.
The Doctor receives a mysterious translation of an ancient text called the Veritas, which leads to the discovery of a simulated reality.
Much of what is seen in the episode is revealed to be a simulation created by an alien force studying humanityΓÇÖs response to invasion.
Missy returns, imprisoned in the Vault, assisting the Doctor under strict conditions.
The Veritas is a document that causes anyone who reads it to realize they are in a simulation, leading to widespread despair and suicide.
The episode explores reality, perception, faith, and the idea of simulated existence and moral truth.