Jeff 'Swampy' Marsh

Known For: Acting
Gender: Male
Date of Birth: December 9, 1960 (64 years old)
Place of Birth: 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.
2020
2015
2014

Actor Major Francis Monogram (voice)
Phineas and Ferb: Night of the Living Pharmacists

Actor Major Hologram / Imperial Officer Jeff / Additional Voices
Phineas and Ferb: Star Wars

Actor Self
I Know That Voice

Actor Major Francis Monogram / Additional Voices (voice)
Phineas and Ferb Save Summer

Creator
Phineas and Ferb: Night of the Living Pharmacists

Creator
Phineas and Ferb: Star Wars

Characters
Phineas and Ferb: Star Wars

Creator
Phineas and Ferb Save Summer
2013
2012
2011

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

Sequence Supervisor
Phineas and Ferb The Movie: Across the 2nd Dimension

Executive Producer
Phineas and Ferb The Movie: Across the 2nd Dimension

Writer
Phineas and Ferb The Movie: Across the 2nd Dimension