Writer: Steven Moffatt
Director: Richard Curtis
Producer: Peter Bennett
Companions: Nardole (Matt Lucas), Bill Potts (Pearl Mackie)
Series: 10, episode 1 (note: Extended episode)
Summary: The Doctor has been working in a university and giving lectures on quantum physics. A woman named Bill Potts has been coming to his lectures despite not being a student. He makes her a student in order to get to know her. She meets a woman with a “star in her eye”, and sees her own reflection in an oil puddle, but thinks something is wrong with it. The Doctor realizes the reflection in the puddle is actually mimicking Bill, not just a simple illusion. And it is sentient.
Review: This was great. Bill was an amusing companion (I loved when she asked where the bathroom was and got complicated directions. You’d think the TARDIS would be better designed for something like that.) The puddle was actually scary, which surprised me. This was a great introduction for Bill. I look forward to learning about her.
Overall Review: 8/10
Continuity: When Bill looks at the Doctor’s desk in his office, she sees pictures of River Song and Susan. The Doctor plays “Beethoven’s 5th” on his guitar, which he did in “Before the Flood”. The Doctor places an “Out of Order” sign on his TARDIS, identical to the one he did in “The War Machines”. The Doctor meant sentient liquid-beings in “The Genocide Machine”.