Jeff 'Swampy' Marsh
ActingAbout Jeff 'Swampy' Marsh
Jeff "Swampy" Marsh (born December 9, 1960) is an American animator, writer, director, producer, and voice actor associated with several animated television series, most notably as an executive producer and the voice of Major Monogram for Disney's animated series Phineas and Ferb and Milo Murphy's Law, both of which he co-created with Dan Povenmire. Marsh was born in Santa Monica, California, where he grew up with a heavily blended family dynamic. Marsh has been and continues to be a driving force behind several animation projects, working for over six seasons on the animated television series The Simpsons. Marsh continued to work on other animated television series, including King of the Hill and Rocko's Modern Life, before moving to England in 1996.
Jeff 'Swampy' Marsh Movies & Career Overview
The filmography of Jeff 'Swampy' Marsh reflects exceptional commercial consistency. Across 16 major appearances, the actor has built a reputation through performances in multiple genres and storytelling styles.
Dominant Genre
A large portion of Jeff 'Swampy' Marsh's work falls within the Animation genre, where audiences tend to respond most strongly to their on-screen presence.
Success Ratio
Approximately 88% of Jeff 'Swampy' Marsh's films maintain ratings above 6.5, indicating a consistent level of audience approval.
One of the most highly rated entries in their career remains Spiked, which stands out as a key performance.
Best Jeff 'Swampy' Marsh Movies Ranked
Must-watch hits from Jeff 'Swampy' Marsh's career based on audience ratings.
Full Filmography
Every movie Jeff 'Swampy' Marsh has appeared in, with audience ratings and verdicts.
| Year | Movie | Character | Success | More |
|---|---|---|---|---|
| 2025 | Spiked | (voice) | Super Hit | Similar → |
| 2020 | Phineas and Ferb the Movie: Candace Against the Universe | Major Monogram (voice) | Hit | Similar → |
| 2015 | TV's Funniest Animated Stars: A Paley Center for Media Special | Self | Flop | Similar → |
| 2015 | O.W.C.A. Files | Major Monogram / Additional Voices (voice) | Super Hit | Similar → |
| 2015 | Phineas and Ferb: Last Day of Summer | Major Monogram (voice) | Super Hit | Similar → |
| 2014 | Phineas and Ferb: Night of the Living Pharmacists | Major Francis Monogram (voice) | Super Hit | Similar → |
| 2014 | Phineas and Ferb: Star Wars | Major Hologram / Imperial Officer Jeff / Additional Voices | Hit | Similar → |
| 2014 | Phineas and Ferb Save Summer | Major Francis Monogram / Additional Voices (voice) | Super Hit | Similar → |
| 2014 | I Know That Voice | Self | Hit | Similar → |
| 2013 | Phineas and Ferb: Mission Marvel | Francis Major Monogram / Gordon Gutsofanemu / Additional Voices | Hit | Similar → |
| 2013 | Phineas and Ferb: The Perry Files - Animal Agents | Major Monogram (voice) | Super Hit | Similar → |
| 2012 | Phineas and Ferb: The Daze of Summer | - | Hit | Similar → |
| 2011 | Phineas and Ferb The Movie: Across the 2nd Dimension | Major Francis Monogram / Monogram-2 (voice) | Hit | Similar → |
| 2010 | Phineas and Ferb: Summer Belongs to You! | Major Francis Monogram (voice) / Additional Voices | Super Hit | Similar → |
| 2009 | Phineas and Ferb Christmas Vacation! | Major Monogram (voice) | Hit | Similar → |
| N/A | Untitled Phineas and Ferb Movie | Major Francis Monogram (voice) | Flop | Similar → |
Jeff 'Swampy' Marsh - Frequently Asked Questions
What is the best movie of Jeff 'Swampy' Marsh?
According to audience ratings, the best movie starring Jeff 'Swampy' Marsh is "Spiked" with a rating of 10.0/10.
How many movies has Jeff 'Swampy' Marsh acted in?
Jeff 'Swampy' Marsh has been featured in at least 16 major films throughout their career.
What are some other popular movies by Jeff 'Swampy' Marsh?
Other notable films include "Phineas and Ferb: The Perry Files - Animal Agents", "Phineas and Ferb: Last Day of Summer", and "Phineas and Ferb Save Summer".