Time's Final Stand

This is the fourth and final special from Season 17.
==Story==
The ultimate threat to the fabric of time itself emerges as a malevolent entity known as "The Time Eater." This cosmic being seeks to consume all of existence, starting with the Doctor's TARDIS. The Doctor and Macy embark on a perilous journey through the time vortex, facing their deepest fears and regrets, in a final showdown to save the universe. Along the way, they are joined by familiar faces from the Doctor's past, uniting to stop this cataclysmic threat and restore balance to the cosmos.
==Cast==
The Doctor - Adrian LesterMacy Gray - Abigail Lawrie
===== Guest Cast =====
* The First Doctor - David Bradley
* The Second Doctor - Reece Shearsmith
* The Third Doctor - Tim Treloar
* The Fifth Doctor - Peter Davison
* The Eighth Doctor - Paul McGann
* The Ninth Doctor - Christopher Eccleston
* The Thirteenth Doctor - Jodie Whittaker
* The Fourteenth Doctor - David Tennant
* Steven Taylor - Peter Purves
* Vicki - Maureen O'Brien
* Polly - Anneke Wills
* Tegan Jovanka - Janet Fielding
* Nyssa - Sarah Sutton
* Turlough - Mark Strickson
* Ace - Sophie Aldred
* Charley Pollard - India Fisher
* Rose Tyler - Billie Piper
* Kate Lethbridge-Stewart - Jemma Redgrave
* Yasmin Khan - Mandip Gill
* Donna Noble - Catherine Tate
* Luke Smith - Tommy Knight
* Rani Chandra - Anjli Mohindra
==Behind The Scenes==
This episode would be written by Andy Wilkins. To spice things up for Doctor Who's 65th anniversary, this would be the final of four bi-monthly specials to be aired. 
Wilkins had specifically asked each and every cast member personally to return for this special to mark the 65th anniversary of the show so it covered a wide variety of eras included.
==Continuity==
At the conclusion of this episode following the credits, a short trailer showing a few brief seconds from the next special would be shown.
Doctor 	Companion/s 	Set Between
The First Doctor 	Steven Taylor & Vicki 	
The Second Doctor 	Polly 	
The Third Doctor 	Luke Smith & Rani Chandra	
The Fifth Doctor 	Tegan, Nyssa & Turlough 	
The Eighth Doctor 	Charley Pollard 	
The Ninth Doctor 	Rose 	
The Thirteenth Doctor	Yasmin Khan 	
The Fourteenth Doctor	Donna Noble 	
UNIT 	Companion/s	Set Between
Kate Lethbridge-Stewart	Ace,