Jeff 'Swampy' Marsh
Born: 1960-12-09 in Santa Monica, California, USA
Known For: Acting
Biography
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
2026
- Hey A.J.! ... (Executive Producer)
2025
- Cartoonified! With Phineas and Ferb ... (Creator)
- Spiked as (voice)
2024
- Super Happy Magic Forest ... (Executive Producer)
2022
- How NOT to Draw as Major Monogram (voice)
2020
- Phineas and Ferb the Movie: Candace Against the Universe as Major Monogram (voice)
2017
- Pete the Cat ... (Writer)
2016
- Milo Murphy's Law as Additional Voices (voice)
2015
- Phineas and Ferb: Last Day of Summer as Major Monogram (voice)
- O.W.C.A. Files as Major Monogram / Additional Voices (voice)
- TV's Funniest Animated Stars: A Paley Center for Media Special as Self
2014
- I Know That Voice as Self
- Phineas and Ferb: Night of the Living Pharmacists as Major Francis Monogram (voice)
- Phineas and Ferb: Star Wars as Major Hologram / Imperial Officer Jeff / Additional Voices
- Phineas and Ferb Save Summer as Major Francis Monogram / Additional Voices (voice)
2013
- Phineas and Ferb: The Perry Files - Animal Agents as Major Monogram (voice)
- Phineas and Ferb: Mission Marvel as Francis Major Monogram / Gordon Gutsofanemu / Additional Voices
2011
- Phineas and Ferb The Movie: Across the 2nd Dimension as Major Francis Monogram / Monogram-2 (voice)
2010
- Phineas and Ferb: Summer Belongs to You! as Major Francis Monogram (voice) / Additional Voices
- Take Two with Phineas and Ferb ... (Creator)
2009
- Phineas and Ferb Christmas Vacation! as Major Monogram (voice)
2007
- Phineas and Ferb as Francis Monogram (voice)
2003
- Bounty Hamster as (voice)
2001
- Aaagh! It's the Mr. Hell Show! as Josh (voice)
1994
- Looks Can Kill ... (Associate Producer)
1993
- Rocko's Modern Life ... (Storyboard Artist)