- Jodie Whittaker (The Doctor)
- Mandip Gill (Yasmin 'Yaz' Khan)
- John Bishop (Dan Lewis)
Episode: The Lodger
Air Date: 2010-06-12
Runtime: 43 min
There's a house on Aickman road with a staircase that people go up, but never down... To solve the mystery of the man upstairs, the Doctor must pass himself off as a normal human being, and share a flat with Craig Owens.