- Jodie Whittaker (The Doctor)
- Mandip Gill (Yasmin 'Yaz' Khan)
- John Bishop (Dan Lewis)
Episode: Oxygen
Air Date: 2017-05-13
Runtime: 45 min
"Space - the final frontier. Final because it wants to kill us." Trapped on a space station with no oxygen, the Doctor, Bill and Nardole are horrified to discover the automated spacesuits keeping them alive are also trying to kill them!