
Jeff 'Swampy' Marsh
- Known for
- Acting
- Born
- December 9, 1960 (age 65)
- Birthplace
- Santa Monica, California, USA
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.
Known For

Phineas and Ferb

Phineas and Ferb the Movie: Across the 2nd Dimension

Phineas and Ferb the Movie: Candace Against the Universe

Rocko's Modern Life

Phineas and Ferb: Star Wars

Phineas and Ferb: Mission Marvel

I Know That Voice

Milo Murphy's Law

Phineas and Ferb: The Perry Files - Animal Agents

Phineas and Ferb: The Daze of Summer

Pete the Cat

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

Untitled Phineas and Ferb Movie
Movie · as Major Francis Monogram (voice)

Agent P Under C
TV · as Major Monogram (voice) · 8 eps

Spiked
Movie · as Big Boss Croc / Exterminator (voice)

How Not to Draw
TV · as Major Monogram (voice) · 1 ep

Phineas and Ferb the Movie: Candace Against the Universe
Movie · as Major Monogram (voice)

Milo Murphy's Law
TV · as Balthazar Cavendish / Additional Voices (voice) · 73 eps

TV's Funniest Animated Stars: A Paley Center for Media Special
Movie · as Self

Phineas and Ferb: Star Wars
Movie · as Major Hologram / Imperial Officer Jeff / Additional Voices

I Know That Voice
Movie · as Self

Phineas and Ferb: The Perry Files - Animal Agents
Movie · as Major Monogram (voice)

Phineas and Ferb: Mission Marvel
Movie · as Francis Major Monogram / Gordon Gutsofanemu / Additional Voices

Phineas and Ferb: The Daze of Summer
Movie

Phineas and Ferb the Movie: Across the 2nd Dimension
Movie · as Major Francis Monogram / Monogram-2 (voice)

Phineas and Ferb Summer Belongs to you !
Movie · as Major Francis Monogramme

Phineas and Ferb
TV · as Major Francis Monogram (voice) · 263 eps

Bounty Hamster
TV · as (voice) · 1 ep

Aaagh! It's the Mr. Hell Show!
TV · as Josh (voice) · 13 eps