---
name: "Mary Demas"
canonical: "https://film.one/person/mary-demas"
fi1m_id: "mary-demas"
imdb_id: "nm0218186"
tmdb_id: 67161
roles: ["Actor"]
reviewed_on_fi1m: 1
average_as: "actor"
average_over: 1
updated: "2026-09-26T02:02:07.438312+00:00"
licence: "© Fi1m Ltd. Written by AI under a human editor; checked against sources before publication. Quote with attribution and a link to the canonical URL."
---

# Mary Demas

## Identity

Mary Demas

- **Canonical:** https://film.one/person/mary-demas
- **Type:** Person
- **Fi1m ID:** mary-demas
- **IMDb ID:** nm0218186
- **TMDB ID:** 67161
- **Same entity:** https://www.imdb.com/name/nm0218186/, https://www.themoviedb.org/person/67161

Actor.

## Details

- **Work:** Actor
- **Elsewhere:** https://www.imdb.com/name/nm0218186/, https://www.themoviedb.org/person/67161

## Streaming the US now

- **Tubi:** [*Henry: Portrait of a Serial Killer*](https://film.one/film/henry-portrait-of-a-serial-killer.md) (65)

For United States; add `?region=XX` for another country.

## Biography

Mary Demas is an actress. She appeared in *Henry: Portrait of a Serial Killer* (1986) as Dead Woman, Dead Prostitute and Hooker #1, and in *The Naked Face* (1984) as Policewoman.

She was a close friend of director John McNaughton and played three separate victim roles in the film, which was shot on a low budget in Chicago using local theatre connections.

*Sources: imdb.com, en.wikipedia.org.*

## On Fi1m (1)

- *Henry: Portrait of a Serial Killer* (1986), Fi1m 65, as Dead Woman / Dead Prostitute / Hooker #1 — [page](https://film.one/film/henry-portrait-of-a-serial-killer.md)

## Complete filmography (2)

Every credit, newest first. Titles without a page can be requested for review on the HTML page.

- *Henry: Portrait of a Serial Killer* (1986), as Dead Woman / Dead Prostitute / Hooker #1 — Fi1m 65, [page](https://film.one/film/henry-portrait-of-a-serial-killer.md)
- *The Naked Face* (1984), as Policewoman

---
© Fi1m Ltd. Written by AI under a human editor; checked against sources before publication. Quote with attribution and a link to the canonical URL. Canonical: https://film.one/person/mary-demas