Jeff 'Swampy' Marsh
Born in Santa Monica, California, USA — Dec 09 1960
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Biography
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 s…
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Jeff 'Swampy' Marsh's Credits
Browse acting and crew credits across movies and TV — filter and sort to find specific roles.
Phineas and Ferb
Francis Monogram (voice)
Rocko's Modern Life
Art
Milo Murphy's Law
Additional Voices (voice)
Pete the Cat
Writing
Shadow of the Elves
Directing
Aaagh! It's the Mr. Hell Show!
Josh (voice)
Cartoonified! With Phineas and Ferb
Creator
Bounty Hamster
(voice)
Phineas and Ferb The Movie: Across the 2nd Dimension
Major Francis Monogram / Monogram-2 (voice)
Super Happy Magic Forest
Production
I Know That Voice
Self
How Not to Draw
Major Monogram (voice)
Phineas and Ferb the Movie: Candace Against the Universe
Major Monogram (voice)
Agent P Under C
Major Monogram (voice)
Phineas and Ferb: Star Wars
Major Hologram / Imperial Officer Jeff / Additional Voices
Phineas and Ferb: Mission Marvel
Francis Major Monogram / Gordon Gutsofanemu / Additional Voices
Phineas and Ferb: Night of the Living Pharmacists
Major Francis Monogram (voice)
Hey A.J.!
Production
Spiked
(voice)
Phineas and Ferb: Summer Belongs to You!
Major Francis Monogram (voice) / Additional Voices
Phineas and Ferb Christmas Vacation!
Major Monogram (voice)
TV's Funniest Animated Stars: A Paley Center for Media Special
Self
Phineas and Ferb: Last Day of Summer
Major Monogram (voice)
Untitled Phineas and Ferb Movie
Major Francis Monogram (voice)
Phineas and Ferb Save Summer
Major Francis Monogram / Additional Voices (voice)
Phineas and Ferb: The Perry Files - Animal Agents
Major Monogram (voice)
O.W.C.A. Files
Major Monogram / Additional Voices (voice)
Phineas and Ferb: The Daze of Summer
Looks Can Kill
Production