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...
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TV's Funniest Animated Stars: A Paley Center for Media Special
As Self
Phineas and Ferb The Movie: Across the 2nd Dimension
As Major Francis Monogram / Monogram-2 (voice)
Phineas and Ferb: The O.W.C.A. Files
As Major Monogram / Additional Voices (voice)
Phineas and Ferb: Night of the Living Pharmacists
As Major Francis Monogram (voice)
Phineas and Ferb Christmas Vacation!
As Major Monogram (voice)
Phineas and Ferb: The Perry Files - Animal Agents
As Major Monogram (voice)
Phineas and Ferb: The Daze of Summer
Phineas and Ferb: Summer Belongs to You!
As Major Francis Monogram (voice) / Additional Voices
Phineas and Ferb: Last Day of Summer
As Major Monogram (voice)
Phineas and Ferb: Mission Marvel
As Francis Major Monogram / Gordon Gutsofanemu / Additional Voices
Phineas and Ferb: Star Wars
As Major Hologram / Imperial Officer Jeff / Additional Voices
I Know That Voice
As Self
Phineas and Ferb the Movie: Candace Against the Universe
As Major Monogram (voice)
Aaagh! It's the Mr. Hell Show!
As Josh (voice)
Bounty Hamster
As (voice)
Phineas and Ferb
As Francis Monogram (voice)
Milo Murphy's Law
As Additional Voices (voice)