Jeff 'Swampy' Marsh

Jeff 'Swampy' Marsh

  • Born on
    • December 9th, 1960
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.


Acting (6 Credits)

2020Phineas and Ferb the Movie: Candace Against the Universe as Major Monogram (voice)
2016Milo Murphy's Law as Additional Voices
2014Phineas and Ferb: Star Wars as Major Francis Monogram (voice)
2013Phineas and Ferb: Mission Marvel as Major Francis Monogram (voice)
2011Phineas and Ferb the Movie: Across the 2nd Dimension as Major Francis Monogram (voice)
2007Phineas and Ferb as Francis Monogram (voice)

Himself (1 Credits)

2013I Know That Voice as Himself

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