Jeff 'Swampy' Marsh
Acting
1960-12-09 · 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 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
Agent P Under C
2026 · Series
Hey A.J.!
2026 · Series
Cartoonified! With Phineas and Ferb
2025 · Series
Spiked
2025 · Movie
Super Happy Magic Forest
2024 · Series
How Not to Draw
2022 · Series
Phineas and Ferb the Movie: Candace Against the Universe
2020 · Movie
Pete the Cat
2017 · Series
Milo Murphy's Law
2016 · Series
TV's Funniest Animated Stars: A Paley Center for Media Special
2015 · Movie
Phineas and Ferb: Star Wars
2014 · Movie
I Know That Voice
2014 · Movie
Phineas and Ferb: Mission Marvel
2013 · Movie
Phineas and Ferb: The Perry Files - Animal Agents
2013 · Movie
Phineas and Ferb: The Daze of Summer
2012 · Movie
Phineas and Ferb the Movie: Across the 2nd Dimension
2011 · Movie
Take Two with Phineas and Ferb
2010 · Series
Phineas and Ferb Summer Belongs to you !
2010 · Movie
Phineas and Ferb
2007 · Series
Shadow of the Elves
2004 · Series
Bounty Hamster
2003 · Series
Aaagh! It's the Mr. Hell Show!
2001 · Series
Looks Can Kill
1994 · Movie
Rocko's Modern Life
1993 · Series
Untitled Phineas and Ferb Movie
Movie