Person
Jeff 'Swampy' Marsh
Santa Monica, California, USA
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 a…
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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.
Filmography
Movies and shows, newest first
-
2026
Agent P Under C
TV show Major Monogram (voice)
-
2026
Hey A.J.!
TV show Executive Producer
-
2025
Cartoonified! With Phineas and Ferb
TV show Creator
-
2025
Spiked
Movie Big Boss Croc / Exterminator (voice)
-
2024
Super Happy Magic Forest
TV show Executive Producer
-
2022
How Not to Draw
TV show Major Monogram (voice)
-
2020
Phineas and Ferb the Movie: Candace Against the Universe
Movie Major Monogram (voice)
-
2017
Pete the Cat
TV show Writer
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2016
Milo Murphy's Law
TV show Additional Voices (voice)
- 2015
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2015
O.W.C.A. Files
Movie Major Monogram / Additional Voices (voice)
-
2014
Phineas and Ferb: Star Wars
Movie Major Hologram / Imperial Officer Jeff / Additional Voices
-
2014
I Know That Voice
Movie Self
-
2013
Phineas and Ferb: Mission Marvel
Movie Francis Major Monogram / Gordon Gutsofanemu / Additional Voices
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2013
Phineas and Ferb: The Perry Files - Animal Agents
Movie Major Monogram (voice)
- 2012
More credits
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2011
Phineas and Ferb the Movie: Across the 2nd Dimension
Movie Major Francis Monogram / Monogram-2 (voice)
-
2010
Take Two with Phineas and Ferb
TV show Executive Producer
-
2007
Phineas and Ferb
TV show Francis Monogram (voice)
-
2004
Shadow of the Elves
TV show Director
-
2003
Bounty Hamster
TV show (voice)
-
2001
Aaagh! It's the Mr. Hell Show!
TV show Josh (voice)
-
1994
Looks Can Kill
Movie Associate Producer
-
1993
Rocko's Modern Life
TV show Storyboard Artist
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Untitled Phineas and Ferb Movie
Movie Major Francis Monogram (voice)
