- Country: N/A
- Genres: Adventure, Drama, Family
- Release: 2021-10-31
- Director: Jamie Magnus Stone
- Writers: Chris Chibnall , Robert Holmes , Steven Moffat (I)
- Language: English
- Stars: Jodie Whittaker , Mandip Gill , John Bishop , Craige Els , Steve Oram , Nadia Albina , Sam Spruell , Rochenda Sandall , Rochenda Sandall , Jacob Anderson , Annabel Scholey
- Runtime: 50 min
- Awards: N/A
- AKA: Flux: Chapter One - The Halloween Apocalypse (United Kingdom)神秘博士 第十三季 (China)
- Plot: At Halloween, all across the universe, terrifying forces are stirring. From the Arctic Circle to deep space, an ancient evil is breaking free. And in present day Liverpool, the life of Dan Lewis is about to change forever.
- IMDB:tt13456370
Doctor Who Season 13 Cast
Jamie Magnus Stone
Director
Jodie Whittaker
The Doctor
Mandip Gill
Yasmin Khan
John Bishop
Dan Lewis
Craige Els
Karvanista
Steve Oram
Joseph Williamson
Nadia Albina
Diane
Sam Spruell
Swarm
Rochenda Sandall
Azure
Rochenda Sandall
Anna
Jacob Anderson
Vinder
Annabel Scholey
Claire