- Jodie Whittaker (The Doctor)
- Mandip Gill (Yasmin 'Yaz' Khan)
- John Bishop (Dan Lewis)
Episode: New Earth
Air Date: 2006-04-15
Runtime: 47 min
In the year five billion and twenty-three, after the destruction of the Earth, the Doctor takes Rose to the New Earth. There, in a hospital facility, the feline Sisters of Plenitude can mysteriously cure any diseases, but, in the basement, an old enemy of the Doctor is out for revenge.