- Jodie Whittaker (The Doctor)
- Mandip Gill (Yasmin 'Yaz' Khan)
- John Bishop (Dan Lewis)
Episode: Journey to the Centre of the TARDIS
Air Date: 2013-04-27
Runtime: 45 min
When a salvage ship attempts to pull the TARDIS aboard when the time vessel's shields are down, an explosion occurs. The Doctor forces the salvage crew to help him find Clara, who is lost somewhere inside his vessel.