Jeff 'Swampy' Marsh
Acting · 65 years old
Santa Monica, California, USA
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: The Perry Files - Animal Agents
Major Monogram (voice)
Agent P Under C
Major Monogram (voice)
Phineas and Ferb: Last Day of Summer
Major Monogram (voice)
Phineas and Ferb Save Summer
Major Francis Monogram / Additional Voices (voice)
Spiked
(voice)
How Not to Draw
Major Monogram (voice)
Phineas and Ferb: Night of the Living Pharmacists
Major Francis Monogram (voice)
Phineas and Ferb
Francis Monogram (voice)
Phineas and Ferb: Summer Belongs to You!
Major Francis Monogram (voice) / Additional Voices
O.W.C.A. Files
Major Monogram / Additional Voices (voice)
Milo Murphy's Law
Additional Voices (voice)
Phineas and Ferb Christmas Vacation!
Major Monogram (voice)
Phineas and Ferb the Movie: Candace Against the Universe
Major Monogram (voice)
Phineas and Ferb: Star Wars
Major Hologram / Imperial Officer Jeff / Additional Voices
I Know That Voice
Self
Phineas and Ferb The Movie: Across the 2nd Dimension
Major Francis Monogram / Monogram-2 (voice)
Phineas and Ferb: The Daze of Summer
Phineas and Ferb: Mission Marvel
Francis Major Monogram / Gordon Gutsofanemu / Additional Voices
Aaagh! It's the Mr. Hell Show!
Josh (voice)
TV's Funniest Animated Stars: A Paley Center for Media Special
Self
Behind the Scenes
Phineas and Ferb
Director
Phineas and Ferb
Writer
Pete the Cat
Writer
Rocko's Modern Life
Director
Phineas and Ferb Christmas Vacation!
Producer
Phineas and Ferb the Movie: Candace Against the Universe
Writer
Phineas and Ferb The Movie: Across the 2nd Dimension
Writer
Phineas and Ferb: The Daze of Summer
Writer
Shadow of the Elves
Director
Untitled Phineas and Ferb Movie
Writer