Directed credits
2
Emerging
Beginning to build directing work.
Director
Jeff 'Swampy' Marsh
Acting
Career Snapshot
ExplainedThese indicators come from TMDB. They are relative signals, not review ratings.
TMDB popularity
0.5
Low visibility
TMDB internal trend index. Higher usually means more searches and page activity now.
Directed movies: 0Directed series: 2All crew 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: 7.39
Wikidata: Q290744
Also known as
Jeff "Swampy" Marsh • Jeff Harsh • Jeff Swampy Marsh • Jeffrey Marsh • Jeff Marsh • Swampy Marsh • Swampi Marsh • Jeffrey "Swampy" Marsh
Frequent jobs
Director (2)Executive Producer (6)Writer (3)Associate Producer (1)Creator (1)Producer (1)Sequence Supervisor (1)Story (1)Storyboard Artist (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.
Series
Directed Series
Series directed by Jeff 'Swampy' Marsh.
Movies
Top Rated Movies
Highest rated movies linked with Jeff 'Swampy' Marsh.
Executive Producer
Phineas and Ferb the Movie: Candace Against the Universe
2020 • Movie
as Major Hologram / Imperial Officer Jeff / Additional Voices
Phineas and Ferb: Star Wars
2014 • Movie
as Self
I Know That Voice
2014 • Movie
Sequence Supervisor
Phineas and Ferb The Movie: Across the 2nd Dimension
2011 • Movie
as Francis Major Monogram / Gordon Gutsofanemu / Additional Voices
Phineas and Ferb: Mission Marvel
2013 • Movie
Series
Top Rated Series
Highest rated series linked with Jeff 'Swampy' Marsh.
Movies
Most Popular Movies
Most viewed movie titles linked with Jeff 'Swampy' Marsh.
Sequence Supervisor
Phineas and Ferb The Movie: Across the 2nd Dimension
2011 • Movie
Executive Producer
Phineas and Ferb the Movie: Candace Against the Universe
2020 • Movie
as Big Boss Croc / Exterminator (voice)
Spiked
2025 • Movie
Executive Producer
O.W.C.A. Files
2015 • 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 Hologram / Imperial Officer Jeff / Additional Voices
Phineas and Ferb: Star Wars
2014 • Movie
Story
Phineas and Ferb: Summer Belongs to You!
2010 • Movie
Producer
Phineas and Ferb Christmas Vacation!
2009 • Movie
as Major Monogram (voice)
Phineas and Ferb: Last Day of Summer
2015 • Movie
as Major Monogram (voice)
Phineas and Ferb: The Perry Files - Animal Agents
2013 • Movie
as Major Francis Monogram (voice)
Phineas and Ferb: Night of the Living Pharmacists
2014 • Movie
Series
Most Popular Series
Most viewed series linked with Jeff 'Swampy' Marsh.
Director • 4 eps
Phineas and Ferb
2007 • Series
Executive Producer • 73 eps
Milo Murphy's Law
2016 • Series
Storyboard Artist • 20 eps
Rocko's Modern Life
1993 • Series
Writer • 2 eps
Pete the Cat
2017 • Series
Executive Producer • 10 eps
Take Two with Phineas and Ferb
2010 • Series
as Major Monogram (voice) • 8 eps
Agent P Under C
2026 • Series
Executive Producer • 52 eps
Super Happy Magic Forest
2024 • Series
as Major Monogram (voice) • 1 eps
How Not to Draw
2022 • Series
as (voice) • 1 eps
Bounty Hamster
2003 • Series
Director • 26 eps
Shadow of the Elves
2004 • Series
Executive Producer • 44 eps
Hey A.J.!
2026 • Series
as Josh (voice) • 13 eps
Aaagh! It's the Mr. Hell Show!
2001 • Series
Movies
Other Crew Work in Movies
Additional movie credits for Jeff 'Swampy' Marsh.
Executive Producer
Phineas and Ferb the Movie: Candace Against the Universe
2020 • Movie
Executive Producer
O.W.C.A. Files
2015 • Movie
Writer
Phineas and Ferb: The Daze of Summer
2012 • Movie
Sequence Supervisor
Phineas and Ferb The Movie: Across the 2nd Dimension
2011 • Movie
Story
Phineas and Ferb: Summer Belongs to You!
2010 • Movie
Producer
Phineas and Ferb Christmas Vacation!
2009 • Movie
Associate Producer
Looks Can Kill
1994 • Movie
Writer
Untitled Phineas and Ferb Movie
Movie
Series
Other Crew Work in Series
Additional series credits for Jeff 'Swampy' Marsh.
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
Writer • 2 eps
Pete the Cat
2017 • Series
Executive Producer • 73 eps
Milo Murphy's Law
2016 • Series
Executive Producer • 10 eps
Take Two with Phineas and Ferb
2010 • Series
Storyboard Artist • 20 eps
Rocko's Modern Life
1993 • Series
Movies
Acting Appearances in Movies
Movie cast credits for 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
Series
Acting Appearances in Series
Series cast credits for Jeff 'Swampy' Marsh.
as Major Monogram (voice) • 8 eps
Agent P Under C
2026 • Series
as Major Monogram (voice) • 1 eps
How Not to Draw
2022 • Series
as Additional Voices (voice) • 73 eps
Milo Murphy's Law
2016 • Series
as Francis Monogram (voice) • 261 eps
Phineas and Ferb
2007 • Series
as (voice) • 1 eps
Bounty Hamster
2003 • Series
as Josh (voice) • 13 eps
Aaagh! It's the Mr. Hell Show!
2001 • Series