- Jodie Whittaker (The Doctor)
- Mandip Gill (Yasmin 'Yaz' Khan)
- John Bishop (Dan Lewis)
Episode: The Pilot
Air Date: 2017-04-15
Runtime: 50 min
Two worlds collide when the Doctor meets Bill. A chance encounter with a girl with a star in her eye leads to a terrifying chase across time and space. Bill’s mind is opened to a universe that is bigger and more exciting than she could possibly have imagined – but who is the Doctor, and what is his secret mission with Nardole on Earth?