--- name: "Jeff 'Swampy' Marsh" canonical: "https://film.one/person/jeff-swampy-marsh" fi1m_id: "jeff-swampy-marsh" imdb_id: "nm0550578" tmdb_id: 567615 wikidata_id: "Q290744" roles: ["Director"] born: "9 December 1960" reviewed_on_fi1m: 1 average_as: "director" average_over: 1 updated: "2026-09-24T02:06:54.212370+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." --- # Jeff 'Swampy' Marsh ## Identity Jeff 'Swampy' Marsh - **Canonical:** https://film.one/person/jeff-swampy-marsh - **Type:** Person - **Fi1m ID:** jeff-swampy-marsh - **IMDb ID:** nm0550578 - **TMDB ID:** 567615 - **Wikidata ID:** Q290744 - **Same entity:** https://en.wikipedia.org/wiki/Jeff_%22Swampy%22_Marsh, https://www.wikidata.org/wiki/Q290744, https://www.imdb.com/name/nm0550578/, https://www.themoviedb.org/person/567615 Director. Born 9 December 1960 in Santa Monica, California, USA. ## Details - **Work:** Director - **Born:** 9 December 1960, Santa Monica, California, USA - **Also known as:** Jeff "Swampy" Marsh , Jeff Harsh, Jeff Swampy Marsh, Jeffrey Marsh, Jeff Marsh, Swampy Marsh, Swampi Marsh, Jeffrey "Swampy" Marsh - **Elsewhere:** https://en.wikipedia.org/wiki/Jeff_%22Swampy%22_Marsh, https://www.wikidata.org/wiki/Q290744, https://www.imdb.com/name/nm0550578/, https://www.themoviedb.org/person/567615 ## Streaming the US now - **Disney+:** [*Phineas and Ferb*](https://film.one/tv/phineas-and-ferb.md) (80) For United States; add `?region=XX` for another country. ## Biography Jeff 'Swampy' Marsh is an American animator, writer, director, producer and voice actor. Born on 9 December 1960 in Santa Monica, California, he began his career in animation as a background layout artist on The Simpsons, where he worked for over six seasons. Marsh collaborated with Dan Povenmire on several series, including Rocko's Modern Life. He lived in England for six years from the mid-1990s, contributing to BBC animated projects. With Povenmire he co-created the Disney series Phineas and Ferb, which premiered in 2007; Marsh serves as executive producer, writer, director and voices the character Major Francis Monogram. The pair later co-created Milo Murphy's Law (2016). Marsh has also created and produced the series Pete the Cat and worked on Hey A.J. He has received multiple Emmy Award nominations for his work on Phineas and Ferb. *Sources: en.wikipedia.org, imdb.com, detpress.com.* ## On Fi1m (1) - *Phineas and Ferb* (2007), Fi1m 80, as Francis Monogram (voice) — [page](https://film.one/tv/phineas-and-ferb.md) ## Complete filmography (21) Every credit, newest first. Titles without a page can be requested for review on the HTML page. - *Agent P Under C* (2026), series, as Major Monogram (voice) - *Hey A.J.!* (2026), series, Executive Producer - *Cartoonified! With Phineas and Ferb* (2025), series, Creator - *Spiked* (2025), as Big Boss Croc / Exterminator (voice) - *Super Happy Magic Forest* (2024), series, Executive Producer - *Phineas and Ferb the Movie: Candace Against the Universe* (2020), as Major Monogram (voice) · Executive Producer, Writer - *Pete the Cat* (2017), series, Writer, Creator - *Milo Murphy's Law* (2016), series, as Additional Voices (voice) · Executive Producer, Story, Creator - *O.W.C.A. Files* (2015), as Major Monogram / Additional Voices (voice) · Executive Producer - *Phineas and Ferb: Star Wars* (2014), as Major Hologram / Imperial Officer Jeff / Additional Voices - *Phineas and Ferb: Mission Marvel* (2013), as Francis Major Monogram / Gordon Gutsofanemu / Additional Voices - *Phineas and Ferb: The Perry Files - Animal Agents* (2013), as Major Monogram (voice) - *Phineas and Ferb: The Daze of Summer* (2012), Writer - *Phineas and Ferb the Movie: Across the 2nd Dimension* (2011), as Major Francis Monogram / Monogram-2 (voice) · Sequence Supervisor, Executive Producer, Writer - *Phineas and Ferb* (2007), series, as Francis Monogram (voice) · Director, Executive Producer, Writer, Story, Creator — Fi1m 80, [page](https://film.one/tv/phineas-and-ferb.md) - *Shadow of the Elves* (2004), series, Director - *Bounty Hamster* (2003), series, as (voice) - *Aaagh! It's the Mr. Hell Show!* (2001), series, as Josh (voice) - *Looks Can Kill* (1994), Associate Producer - *Rocko's Modern Life* (1993), series, Storyboard Artist, Director, Additional Writing - *Untitled Phineas and Ferb Movie*, as Major Francis Monogram (voice) · Writer, Executive Producer ## Gallery - ![Jeff 'Swampy' Marsh](https://film.one/media/person/1726145/gallery-d36d2ef9264c.jpg) Jeff 'Swampy' Marsh — Joe Meno, CC BY 2.0, via Wikimedia Commons (https://upload.wikimedia.org/wikipedia/commons/b/b3/Jeff_%22Swampy%22_Marsh_%28cropped%29.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=thumbnail_unscaled) - ![American animators Dan Povenmire and Jeff "Swampy" Marsh at San Diego Comic-Con 2009.](https://film.one/media/person/1726145/gallery-6a2210988f1d.jpg) American animators Dan Povenmire and Jeff "Swampy" Marsh at San Diego Comic-Con 2009. — Joe Meno from Raleigh, NC, USA, CC BY 2.0, via Wikimedia Commons (https://thumb.wikimedia.org/wikipedia/commons/thumb/1/14/Dan_Povenmire_and_Swampy_Marsh_%282009%29.jpg/1280px-Dan_Povenmire_and_Swampy_Marsh_%282009%29.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=thumbnail) - ![Phineas and Ferb panel (2009)](https://film.one/media/person/1726145/gallery-8c597e7a011d.jpg) Phineas and Ferb panel (2009) — Joe Meno, CC BY 2.0, via Wikimedia Commons (https://thumb.wikimedia.org/wikipedia/commons/thumb/a/a6/Jeff_%22Swampy%22_Marsh.jpg/1280px-Jeff_%22Swampy%22_Marsh.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=thumbnail) - ![Jeff "Swampy" Marsh. (2009)](https://film.one/media/person/1726145/gallery-62af46f7f81c.png) Jeff "Swampy" Marsh. (2009) — Joe Meno, CC BY 2.0, via Wikimedia Commons (https://upload.wikimedia.org/wikipedia/commons/9/95/Jeff_marsh.png?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=thumbnail_unscaled) - ![San Diego Comic Con 2013](https://film.one/media/person/1726145/gallery-be4c4c54365b.jpg) San Diego Comic Con 2013 — Sue Lukenbaugh from Sacramento, USA, CC BY-SA 2.0, via Wikimedia Commons (https://thumb.wikimedia.org/wikipedia/commons/thumb/8/8c/Phineas_and_Ferb_Signing_%2812280364674%29.jpg/1280px-Phineas_and_Ferb_Signing_%2812280364674%29.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=thumbnail) - ![San Diego Comic Con 2013](https://film.one/media/person/1726145/gallery-2da75bbd8041.jpg) San Diego Comic Con 2013 — Sue Lukenbaugh from Sacramento, USA, CC BY-SA 2.0, via Wikimedia Commons (https://thumb.wikimedia.org/wikipedia/commons/thumb/f/fc/Phineas_and_Ferb_Signing_%2812280488606%29.jpg/1280px-Phineas_and_Ferb_Signing_%2812280488606%29.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=thumbnail) --- © 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/jeff-swampy-marsh