Acting credits
22
Active
Consistent number of acting credits.
Actor
Jeff 'Swampy' Marsh
Acting
Career Snapshot
ExplainedThese indicators come from TMDB. They are relative signals, not review ratings.
TMDB popularity
0.7
Low visibility
TMDB internal trend index. Higher usually means more searches and page activity now.
Movies: 17Series: 13Crew credits: 17
TMDB ID: 567615
IMDb ID: nm0550578
Known for: Acting
Born: December 9, 1960
Age: 65
Place of birth: Santa Monica, California, USA
Gender: Male
Adult content flag: No
Career span: 1993 - 2026
Years active: 34
Average TMDB rating: 7.37
Wikidata: Q290744
Also known as
Jeff "Swampy" Marsh • Jeff Harsh • Jeff Swampy Marsh • Jeffrey Marsh • Jeff Marsh • Swampy Marsh • Swampi Marsh • Jeffrey "Swampy" Marsh
Other jobs
Executive Producer (6)Writer (3)Director (2)Associate Producer (1)Creator (1)Producer (1)Sequence Supervisor (1)Story (1)
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.
Movies
Movies
Movie credits linked with Jeff 'Swampy' Marsh.
as Big Boss Croc / Exterminator (voice)
Spiked
2025 • Movie
as Major Monogram (voice)
Phineas and Ferb the Movie: Candace Against the Universe
2020 • Movie
as Self
TV's Funniest Animated Stars: A Paley Center for Media Special
2015 • Movie
as Major Monogram / Additional Voices (voice)
O.W.C.A. Files
2015 • Movie
as Major Monogram (voice)
Phineas and Ferb: Last Day of Summer
2015 • Movie
as Major Francis Monogram (voice)
Phineas and Ferb: Night of the Living Pharmacists
2014 • Movie
as Major Hologram / Imperial Officer Jeff / Additional Voices
Phineas and Ferb: Star Wars
2014 • Movie
as Major Francis Monogram / Additional Voices (voice)
Phineas and Ferb Save Summer
2014 • Movie
as Self
I Know That Voice
2014 • Movie
as Francis Major Monogram / Gordon Gutsofanemu / Additional Voices
Phineas and Ferb: Mission Marvel
2013 • Movie
as Major Monogram (voice)
Phineas and Ferb: The Perry Files - Animal Agents
2013 • Movie
Phineas and Ferb: The Daze of Summer
2012 • Movie
as Major Francis Monogram / Monogram-2 (voice)
Phineas and Ferb the Movie: Across the 2nd Dimension
2011 • Movie
as Major Francis Monogram / Additional Voices (voice)
Phineas and Ferb: Summer Belongs to You!
2010 • Movie
as Major Monogram (voice)
Phineas and Ferb Christmas Vacation!
2009 • Movie
Associate Producer
Looks Can Kill
1994 • Movie
as Major Francis Monogram (voice)
Untitled Phineas and Ferb Movie
Movie
Series
Series
Series credits linked with Jeff 'Swampy' Marsh.
as Major Monogram (voice) • 8 eps
Agent P Under C
2026 • Series
Executive Producer • 44 eps
Hey A.J.!
2026 • Series
Creator
Cartoonified! With Phineas and Ferb
2025 • Series
Executive Producer • 52 eps
Super Happy Magic Forest
2024 • Series
as Major Monogram (voice) • 1 eps
How Not to Draw
2022 • Series
Writer • 2 eps
Pete the Cat
2017 • Series
as Additional Voices (voice) • 73 eps
Milo Murphy's Law
2016 • Series
Executive Producer • 10 eps
Take Two with Phineas and Ferb
2010 • Series
as Francis Monogram (voice) • 261 eps
Phineas and Ferb
2007 • Series
Director • 26 eps
Shadow of the Elves
2004 • Series
as (voice) • 1 eps
Bounty Hamster
2003 • Series
as Josh (voice) • 13 eps
Aaagh! It's the Mr. Hell Show!
2001 • Series
Storyboard Artist • 20 eps
Rocko's Modern Life
1993 • Series