O / The Master - Sacha Dhawan
Daniel Barton - Lenny Henry
Ada Lovelace - Sylvie Briggs
Noor Inayat Khan - Aurora Marion
Charles Babbage - Mark Dexter
Najia Khan –┬áShobna Gulati
Hakim Khan - Ravin J Ganatra
Sonya Khan - Bhavnisha Parmar
Inventor - Andrew Pipe
Airport Worker - Tom Ashley
Perkins - Kenneth Jay
Barton’s Mother -┬áBlanche Williams
Stunt Coordinator - Crispin Layfield
Stunt Performers - Paul Bailey, Andrew Burford
1st Assistant Director - Barry Phillips
2nd Assistant Director - Christopher J Thomas
3rd Assistant Director - Lauren Pate
Assistant Directors - Jennifer Day, Rosey-Pepper Mortley
Unit Drivers - Paul Watkins, Jolyon Davey, Steve Darwent
Location Manager - Gareth Roberts
Unit Manager - Jac Jones
Production Manager - Delmi Thomas
Production Coordinator - Sandra Cosfeld
Assistant Production Coordinator - Jade Stephenson
Production Secretary - Ellie Simmons
Production Assistant - Ariana Scott
Executive Assistant - Caroline Cook
1st Assistant Accountant - Debi Griffiths
Assistant Accountant - Rose Wasdell
Art Department Accountant - Hywel Thomas
Cast Payroll - Helen Searle
Camera Operator - Mark McQuoid ACO
Focus Pullers - Jonathan Vidgen, Steve Rees
Camera Assistants - Dan Patounas, Scott Waller, Sophie Hardcastle, Gwilym Jenner
Key Grip - John Robinson
Grip - Ash Whitfield
Grip Assistant - Steffan Allen
Script Supervisor - Nicki Coles
Assistant Script Editor - Caroline Buckley
Sound Maintenance Engineers - Christopher Goding, Joe Malone
Gaffer - Mark Hutchings
Best Boy - Andy Gardiner
Electricians - Gawain Nash, Andrew Williams, Gareth Sheldon, Stuart Gale
Construction Art Director - Julia Jones
Art Director - Joseph Wynne
Standby Art Director - Cerys Lewis
Set Decorator - Joelle Rumbelow
Production Buyer - Vicki Male
Assistant Buyer - Rosy Pearce
Petty Cash Buyer - Billie Blue Williams
Set Designers - Daniel Kennedy, Lauren Harper
Art Department Assistant - Celyn Davies
Prop Master - Paul Aitken
Props Chargehand - Trystan Howell
Standby Props - Matthew Ireland
2nd Standby Props –┬áAlice Edwards
Prop Hand - Rebecca Brown
Set Dressers - Dewi Thomas, Atiff Tahir, John Thomas
Storeman - Lucy Hammond
Workshop Manager - Mark Hill
Workshop Assistant - Chris Slocombe
Concept Artist - Louis Knight
Graphic Designer - Gyorgy Siman
Head Modelmaker - Lee Radford
Prop Fabrication - Penny Howarth
Practical Electrician - Matthew Dunford
Standby Carpenter - Colm Garrett
Rigging - Shadow Scaffolding
Standby Rigger - Colin Toms
Construction Manager - Mark Painter
Construction Chargehands - Dean Tucker, John Sinnott
Carpenters - Terry Hale, Campbell Fraser, Joseph Painter, Dave Quinlan, Charlie Wright, Chris Daniels, George Rees,
Jonathan Tylke, Dave Hobbs, Kristian Tucker
Junior Carpenter - Matthew Painter
Construction Driver - Darren Bousie
Construction Labourer - Jason Tylke
HOD Painter - Steve Fudge
Chargehand Painters - Mark Reece, Lloyd Reece
Scenic Artists –┬áChelsea Moore,┬áRachel Willsher
Assistant Costume Designer - Simon Marks
Costume Supervisor - Grace Brooks
Costume Assistants - Andie Mear, Ian Fowler, Chloe Gauci
Make-up Supervisor - Emma Cowen
Make-up Artists - Amy Riley, James Spinks
Junior Make-up Artist - Hanna Lewis-Jones
Unit Medic - Glyn Evans
Casting Associate - Ri McDaid-Wren
Casting Assistant - Ray Bohm
Business Affairs - Elaine Evans, Kyle Parsons, Steve Robson
Talent Team - Hannah Williams, Leanne Bowcott, Jeanette Sigsworth, Deborah Evans, Clare Baker
Assistant Editors - David SJ Davies, Hayley Williams
VFX Editor - Georgina Careless
Assistant VFX Editor - Alastair Gray
Additional VFX - BBC Wales Graphics
Post Production Coordinator - Liv Duffin
Sound Designer - Harry Barnes
ADR Editor - Matthew Cox
Dialogue Editor - Darran Clement
Foley - Bang Post Production
Online Editor - Christine Kelly
Music Orchestrated & Conducted by - Alec Roberts
Music Mixed by - Goetz Botzanhardt
Original Theme Music by - Ron Grainer
Title Sequence & Additional VFX - Ben Pickles
Series Script Editor - Sheena Bucktowonsing
Script Editor - Fiona McAllister
Colourist - Gareth Spensley
Head of Production - Radford Neville
Production Executive - Tracie Simpson
Post Production Producer –┬áCeres Doyle
Production Accountant - Rhys Evans
Supervising Location Manager - Iwan Roberts
Sound Recordist - Deian Llyr Humphreys
Dubbing Mixer - Howard Bargroff
Visual Effects - DNEG
Special Effects - REAL SFX
Creature Effects –┬áRobert Allsopp & Associates
Casting Director - Andy Pryor CDG
Music by - Segun Akinola
Editors - Tom Chapman, Rebecca Trotman
Director Of Photography - Ed Moore
Production Designer - Dafydd Shurmer
Costume Design & Creature Design - Ray Holman
Make-Up Designer - Claire Pritchard-Jones
Line Producer - Steffan Morris
The Doctor escapes from an alien dimension and reunites with her companions. She learns that the Master has destroyed Gallifrey and is manipulating humanity through the Kasaavin. The Doctor teams up with historical figures to stop him. She defeats the Kasaavin plan and uncovers the MasterΓÇÖs devastating revelation about GallifreyΓÇÖs fate.
The Doctor escapes the alternate dimension and continues to pursue the Master across time, including encounters in the past.
The Doctor meets Ada Lovelace and Noor Inayat Khan, who assist in stopping the MasterΓÇÖs plan.
The Master reveals that Gallifrey has been destroyed again after he uncovered a hidden truth about the Time Lords.
The Doctor turns the MasterΓÇÖs own scheme against him, trapping him with the Kasaavin.
The episode explores history, identity, and the consequences of hidden truths.
