
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

TV's Funniest Animated Stars: A Paley Center for Media Special
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Phineas and Ferb The Movie: Across the 2nd Dimension
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O.W.C.A. Files
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Phineas and Ferb: Night of the Living Pharmacists
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Phineas and Ferb Christmas Vacation!
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Phineas and Ferb: The Perry Files - Animal Agents
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Phineas and Ferb: The Daze of Summer
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Phineas and Ferb: Summer Belongs to You!
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Phineas and Ferb: Last Day of Summer
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Phineas and Ferb: Mission Marvel
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Phineas and Ferb: Star Wars
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I Know That Voice
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Phineas and Ferb the Movie: Candace Against the Universe
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Phineas and Ferb Save Summer
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Spiked
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