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Jeff 'Swampy' Marsh

Dec 09, 1960 (64 years old) in 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

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Phineas and Ferb
Francis Monogram (voice)
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Phineas and Ferb The Movie: Across the 2nd Dimension
Major Francis Monogram / Monogram-2 (voice)
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Milo Murphy's Law
Additional Voices (voice)
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Aaagh! It's the Mr. Hell Show!
Josh (voice)
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Phineas and Ferb the Movie: Candace Against the Universe
Major Monogram (voice)
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I Know That Voice
Self
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Phineas and Ferb: Star Wars
Major Hologram / Imperial Officer Jeff / Additional Voices
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Phineas and Ferb: Mission Marvel
Francis Major Monogram / Gordon Gutsofanemu / Additional Voices
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Bounty Hamster
(voice)
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Phineas and Ferb: Last Day of Summer
Major Monogram (voice)

Credits