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Jeff 'Swampy' Marsh

Jeff 'Swampy' Marsh

Actor, Writer, Producer

Born December 9, 1960 in Santa Monica, California, USA

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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.

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2 wins and 8 nominations

Jeff 'Swampy' Marsh Photos

Filmography

Actor

24

Type

Year

Agent P, Under C Poster

Agent P, Under C TV Series2026Major Monogram

Makin' Toons Poster

Makin' Toons TV Series2026Self

Spiked Feature Film2025Croc, Exterminator

Hamster & Gretel Poster

Hamster & Gretel TV Series2022Additional Voices

M.W.C.A. (Musical Without a Cool Acronym): Virtual Edition Poster

M.W.C.A. (Musical Without a Cool Acronym): Virtual Edition Video2021The Director

Focused on Forward TV Series2020Self - Guest

Phineas and Ferb the Movie: Candace Against the Universe Poster

Phineas and Ferb the Movie: Candace Against the Universe Feature Film2020Major Monogram

The What's Update with Xander Kwiecien Poster

The What's Update with Xander Kwiecien TV Series2020Self - Guest

Pete the Cat Poster

Pete the Cat TV Series2017Pete's Dad

Talkin' Toons Poster

Talkin' Toons TV Series2017Self - Panelist

Better Things Poster

Better Things TV Series2016Director

Milo Murphy's Law Poster

Milo Murphy's Law TV Series2016Additional Voices

Family Guy: On the Road to Springfield - The Making of 'The Simpsons Guy' Short Film2015Major Monogram

Ronja, the Robber's Daughter Poster

Ronja, the Robber's Daughter TV Series2014Musician B

Actors for Autism Interviews Poster

Actors for Autism Interviews TV Series2013Self

I Know That Voice Poster

I Know That Voice Documentary2013Self

Phineas and Ferb the Movie: Across the 2nd Dimension Poster

Phineas and Ferb the Movie: Across the 2nd Dimension TV Movie2011Major Francis Monogram

Phineas and Ferb: Across the 2nd Dimension Poster

Phineas and Ferb: Across the 2nd Dimension Video Game2011Major Francis Monogram

Piper's QUICK Picks Poster

Piper's QUICK Picks TV Series2010Self - Guest

Piper's Picks TV Poster

Piper's Picks TV TV Series2008Self - Guest

Phineas and Ferb Poster

Phineas and Ferb TV Series2007Major Francis Monogram

Disney 365 Poster

Disney 365 TV Series2006Self

Bounty Hamster Poster

Bounty Hamster TV Series20031 episode, 2003

Aaagh! It's the Mr. Hell Show! Poster

Aaagh! It's the Mr. Hell Show! TV Series2000Josh

Writer

10

Type

Year

Hey A.J.! Poster

Hey A.J.! TV Series2026

Phineas and Ferb the Movie: Candace Against the Universe Poster

Phineas and Ferb the Movie: Candace Against the Universe Feature Film2020

Pete the Cat Poster

Pete the Cat TV Series2017

Milo Murphy's Law Poster

Milo Murphy's Law TV Series2016

Disney Infinity 3.0 Poster

Disney Infinity 3.0 Video Game2015

Disney Infinity: Marvel Super Heroes Poster

Disney Infinity: Marvel Super Heroes Video Game2014

Disney Infinity Poster

Disney Infinity Video Game2013

Phineas and Ferb the Movie: Across the 2nd Dimension Poster

Phineas and Ferb the Movie: Across the 2nd Dimension TV Movie2011

Phineas and Ferb Poster

Phineas and Ferb TV Series2007

Rocko's Modern Life Poster

Rocko's Modern Life TV Series1993

Producer

8

Type

Year

Hey A.J.! Poster

Hey A.J.! TV Series2026

Phineas and Ferb the Movie: Candace Against the Universe Poster

Phineas and Ferb the Movie: Candace Against the Universe Feature Film2020

Pete the Cat Poster

Pete the Cat TV Series2017

Milo Murphy's Law Poster

Milo Murphy's Law TV Series2016

Phineas and Ferb the Movie: Across the 2nd Dimension Poster

Phineas and Ferb the Movie: Across the 2nd Dimension TV Movie2011

Take Two with Phineas and Ferb Poster

Take Two with Phineas and Ferb TV Series2010

Phineas and Ferb Poster

Phineas and Ferb TV Series2007

Collet .45 Poster

Collet .45 Short Film1993

Other Crew

9

Type

Year

Hey A.J.! Poster

Hey A.J.! TV Series2026

Phineas and Ferb the Movie: Candace Against the Universe Poster

Phineas and Ferb the Movie: Candace Against the Universe Feature Film2020

S.A.L.E.M. Poster

S.A.L.E.M. TV Series2020

Pete the Cat: A Very Groovy Christmas Poster

Pete the Cat: A Very Groovy Christmas TV Movie2018

Pete the Cat Poster

Pete the Cat TV Series2017

Milo Murphy's Law Poster

Milo Murphy's Law TV Series2016

Phineas and Ferb Poster

Phineas and Ferb TV Series2007

Collet .45 Poster

Collet .45 Short Film1993

Rocko's Modern Life Poster

Rocko's Modern Life TV Series1993

Art Department

9

Type

Year

Midori's Nintendoland Bakery TV Series2002

Aaagh! It's the Mr. Hell Show! Poster

Aaagh! It's the Mr. Hell Show! TV Series2000

King of the Hill Poster

King of the Hill TV Series1997

The Story of Santa Claus Poster

The Story of Santa Claus TV Movie1996

Dumb and Dumber Poster

Dumb and Dumber TV Series1995

Rocko's Modern Life Poster

Rocko's Modern Life TV Series1993

The Ren & Stimpy Show Poster

The Ren & Stimpy Show TV Series1992

Little Dracula Poster

Little Dracula TV Series1991

Postman Pat Poster

Postman Pat TV Series1981

Music Department

2

Type

Year

Animal Crackers Poster

Animal Crackers Feature Film2017

Phineas and Ferb Poster

Phineas and Ferb TV Series2007

Director

4

Type

Year

Phineas and Ferb the Movie: Across the 2nd Dimension Poster

Phineas and Ferb the Movie: Across the 2nd Dimension TV Movie2011

Phineas and Ferb Poster

Phineas and Ferb TV Series2007

Shadow of the Elves Poster

Shadow of the Elves TV Series2004

Rocko's Modern Life Poster

Rocko's Modern Life TV Series1993

Animation Department

4

Type

Year

Phineas and Ferb Poster

Phineas and Ferb TV Series2007

Looney Tunes: Back in Action Poster

Looney Tunes: Back in Action Feature Film2003

Little Dracula Poster

Little Dracula TV Series1991

The Simpsons Poster

The Simpsons TV Series1989

Art Director

1

Aaagh! It's the Mr. Hell Show! Poster

Aaagh! It's the Mr. Hell Show! TV Series2000

Thanks

1

Skylanders Academy Poster

Skylanders Academy TV Series2016

Visual Effects

1

The Simpsons Poster

The Simpsons TV Series1989

Casting Director

1

Collet .45 Poster

Collet .45 Short Film1993

Cinematographer

1

Christmas Light Short Film2011

Composer

1

Phineas and Ferb Live Action - Gitchee Gitchee Goo Poster

Phineas and Ferb Live Action - Gitchee Gitchee Goo Short Film2015

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