The cast and runtime for the eighth Doctor Who Season Two episode The Reality War was revealed on the BBC one Schedule for the programme.

The runtime is 1 hour, 6 minutes.

Tight as a noose, strands that have drawn across seasons and centuries now pull together for a devastating climax. The Doctor is doomed. Belinda is lost. Ruby is trapped. A battle rages across the skies as legends converge. Our brave, battered, beaten Doctor stands alone and helpless as the the Unholy Trinity unleash their deadly ambition and the Underverse rises. The Doctor, Belinda and Ruby must reunite and risk everything in the quest to save one innocent life.

The Cast:

Ncuti Gatwa: The Doctor
Varada Sethu: Belinda Chandra
Millie Gibson: Ruby Sunday
Archie Panjabi: The Rani
Anita Dobson: Mrs Flood
Jonah Hauer-King: Conrad Clark
Sam Lawton: Winnie Petheridge
Ruth Madeley: Shirley Anne Bingham
Michelle Greenidge: Carla Sunday
Sienna-Robyn Mavanga-Phipps: Poppy
Jemma Redgrave: Kate Lethbridge-Stewart
Susan Twist: Susan Triad
Alexander Devrient: Colonel Christofer Ibrahim
Aidan Cook: The Vlinx
Yasmin Finney: Rose Noble
Bonnie Langford: Melanie Bush
Angela Wynter: Cherry Sunday
Faye McKeever: Louise Miller
Nila Aalia: Lakshmi Chandra

• Rose Noble, Donna Noble’s daughter, is back
• Nicholas Briggs, who voices the Vlinx, is not on the cast list

Written by Russell T Davies and directed by Alex Sanjiv Pillai, the The Reality War transmits on Saturday 31 May at 6:50pm on BBC iPlayer and on BBC One in the UK. Those outside of the UK can stream The Reality War on Disney+ where available starting at 2pm ET/11am PT, according to the current Disney+ schedule for May.

Directly after the BBC One broadcast, Steffan Powell goes behind the scenes of The Reality War in Doctor Who: Unleashed on BBC Three and on the official YouTube channel where available at 8:00pm.