Shireen (Knock Knock)
Shireen was a friend of Bill Potts. Following a search for decent and affordable student accommodation, Bill moved in with Shireen and a group of her closest friends to 11 Cardinal Road. (TV: Knock Knock)
Biography
Shireen was a student of St Luke's University in 2017. She was a good friend of Bill Potts and had met the Twelfth Doctor at his lectures. She and a few other students began looking for students accommodations. After an afternoon of disappointing offers from an estate agency, they were approached by a Landlord named John who offered them his house for a cheap rent price.
The following evening, everyone moved in. Shireen began to notice strange noises coming from inside the walls and noted Pavel's apparent absence.