---
name: "Mark Leitner"
canonical: "https://film.one/person/mark-leitner"
fi1m_id: "mark-leitner"
tmdb_id: 1377484
roles: ["Writer"]
reviewed_on_fi1m: 1
average_as: "writer"
average_over: 1
updated: "2026-09-23T11:28:57.266311+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."
---

# Mark Leitner

## Identity

Mark Leitner

- **Canonical:** https://film.one/person/mark-leitner
- **Type:** Person
- **Fi1m ID:** mark-leitner
- **TMDB ID:** 1377484
- **Same entity:** https://www.themoviedb.org/person/1377484

Writer.

## Details

- **Work:** Writer
- **Elsewhere:** https://www.themoviedb.org/person/1377484

## Streaming the US now

- **Apple TV:** [*Spartacus*](https://film.one/tv/spartacus-2010.md) (63)

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

## Biography

Mark Leitner is an American television writer. He began in production and script roles, serving as script coordinator on the series *Spartacus* (2010–2013) and writing one episode of its third season.

Leitner later worked on *Marvel's Agents of S.H.I.E.L.D.* (2013–2020) as a writer, teleplay writer and story editor, contributing to its web series *Marvel's Agents of S.H.I.E.L.D.: Slingshot* (2016). He was executive story editor and writer on the series *Helstrom* (2020).

*Sources: imdb.com, marvelcinematicuniverse.fandom.com, tvmaze.com.*

## On Fi1m (1)

- *Spartacus* (2010), Fi1m 63, Writer — [page](https://film.one/tv/spartacus-2010.md)

## Complete filmography (4)

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

- *Helstrom* (2020), series, Writer, Executive Story Editor
- *Marvel's Agents of S.H.I.E.L.D.: Slingshot* (2016), series, Writer
- *Marvel's Agents of S.H.I.E.L.D.* (2013), series, Writer, Teleplay, Story Editor
- *Spartacus* (2010), series, Writer — Fi1m 63, [page](https://film.one/tv/spartacus-2010.md)

---
© 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/mark-leitner