Dorothy Duncan

Dorothy Duncan was a character on Fox's Gotham. She first appears, with her only appearance, in the eleventh episode of the first season. She is portrayed by guest star Allyce Beasley.

Early Life
When she was sixteen, Dorothy poisoned her fellow classmates with poison candy, so she was locked up in Arkham Asylum.

Arkham
After the institution closed, Duncan escaped and resided in the basement, and later pretended to be staff when it was re-opened.

One night, the inmates put on a show by Shakespeare. Dorothy watches them with the other staff members, including James Gordon. Robert “Frogman” Jones, attacks a performer, Royston. Later, the director gives James Gordon a task with finding out who was experimenting on the inmates. James starts with interrogating the inmates while Duncan watches. He then turns his attention on the staff and asks Duncan where the rest of the staff records are kept and realises that they are kept in the basement. Nurse Duncan is apprehensive and tells Gordon that the basement has been closed for years. When Gordon asks nicely if she knew a way to the location, Nurse Duncan happily obliges. Arriving at the basement, Gordon and Nurse Duncan run into Thompkins. Noticing Nurse Duncan’s odd behavior, Gordon tries to get Thompkins to leave. Knowing that Gordon suspects her to be the assailant, Nurse Duncan pushes Thompkins into Gordon and makes a run for it. To help in her escape, Nurse Duncan frees all of the asylum’s inmates, but the plan backfires when she’s killed in a stampede.