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. (TV: Knock Knock)

Once, Bill and Shireen watched a submarine movie on Netflix at Shireen's flat. (PROSE: Diamond Dogs)

When looking for student accommodation, Shireen introduced Bill to her other friends. After an afternoon of disappointing offers from an estate agency, they were approached by a Landlord who offered them his house for a cheap rent price.

The following afternoon, the group moved in, Shireen noting the house's strange noises and Pavel's apparent absence. After dinner, the group found the Doctor had remained in the house, finding it to be an antique. When Paul prepared to exit the house to call the Landlord, they found the man waiting for them, who promised to tend to their various desires before he left. Shireen remembered that she'd forgotten to mention the washing machine only to find that he'd vanished. As the Doctor continued his investigation with Harry and Felicity, Bill, Paul and Shireen went to bed. When Paul entered his room, he was consumed by the Fryads, though Bill and Shireen waved this off as a prank of his. It was then that the house seemed to come to life around them and sealed itself shut.

Bill and Shireen made it to Pavel's room and found him partially absorbed into a wall, much to Shireen's horror. Before they could help him, the Landlord appeared and stopped Pavel's music, causing the wood to absorb him completely. As the Landlord summoned the dryads, the two girls ran to the tower. Making it to the top, the two found Eliza whose body had been turned into a wooden like substance to preserve her from death. When a Dryad made for Eliza, Shireen tried to crush it only for it to climb through her shoe and summon more of its kind, consuming her.

After Eliza chose to kill herself along with the Landlord, her son, the Dryads restored Shireen and the other students to life and they escaped as the house collapsed around them. (TV: Knock Knock)

Personality
Shireen was a pleasant, friendly and sociable girl who was good friends with Bill. However, the terrifying events that took place in the house slowly began to scare her. While at first she seemed to be coping with it rather well, the sight of Eliza in her mutated state quickly proved too much for Shireen and she tried to calmly leave. (TV: Knock Knock)