Portrait of Jeff 'Swampy' Marsh

Jeff 'Swampy' Marsh

Bio: 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
Born: Fri, Dec 09 1960
Birthplace: Santa Monica, California, USA
Jeff 'Swampy' Marsh is 64 years old
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Movies (Acting Roles)

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Poster of Phineas and Ferb the Movie: Candace Against the Universe
Phineas and Ferb the Movie: Candace Against the Universe
Jeff 'Swampy' Marsh was
59 in Phineas and Ferb the Movie: Candace Against the Universe
as 'Major Monogram (voice)'.
Thu, Aug 27 2020
Poster of TV's Funniest Animated Stars: A Paley Center for Media Special
TV's Funniest Animated Stars: A Paley Center for Media Special
Jeff 'Swampy' Marsh was
54 in TV's Funniest Animated Stars: A Paley Center for Media Special
as 'Self'.
Mon, Dec 07 2015
Poster of Phineas and Ferb: The O.W.C.A. Files
Phineas and Ferb: The O.W.C.A. Files
Jeff 'Swampy' Marsh was
54 in Phineas and Ferb: The O.W.C.A. Files
as 'Major Monogram / Additional Voices (voice)'.
Mon, Nov 09 2015
Poster of Phineas and Ferb: Last Day of Summer
Phineas and Ferb: Last Day of Summer
Jeff 'Swampy' Marsh was
54 in Phineas and Ferb: Last Day of Summer
as 'Major Monogram (voice)'.
Mon, Jun 15 2015
Poster of Phineas and Ferb: Night of the Living Pharmacists
Phineas and Ferb: Night of the Living Pharmacists
Jeff 'Swampy' Marsh was
53 in Phineas and Ferb: Night of the Living Pharmacists
as 'Major Francis Monogram (voice)'.
Sat, Oct 04 2014
Poster of Phineas and Ferb: Star Wars
Phineas and Ferb: Star Wars
Jeff 'Swampy' Marsh was
53 in Phineas and Ferb: Star Wars
as 'Major Hologram / Imperial Officer Jeff / Additional Voices'.
Sat, Jul 26 2014
Poster of I Know That Voice
I Know That Voice
Jeff 'Swampy' Marsh was
53 in I Know That Voice
as 'Self'.
Tue, Jan 07 2014
Poster of Phineas and Ferb: Mission Marvel
Phineas and Ferb: Mission Marvel
Jeff 'Swampy' Marsh was
52 in Phineas and Ferb: Mission Marvel
as 'Francis Major Monogram / Gordon Gutsofanemu / Additional Voices'.
Fri, Aug 16 2013
Poster of Phineas and Ferb: The Perry Files - Animal Agents
Phineas and Ferb: The Perry Files - Animal Agents
Jeff 'Swampy' Marsh was
52 in Phineas and Ferb: The Perry Files - Animal Agents
as 'Major Monogram (voice)'.
Tue, Feb 26 2013
Poster of Phineas and Ferb: The Daze of Summer
Phineas and Ferb: The Daze of Summer
Jeff 'Swampy' Marsh was
51 in Phineas and Ferb: The Daze of Summer
Tue, Feb 07 2012
Poster of Phineas and Ferb The Movie: Across the 2nd Dimension
Phineas and Ferb The Movie: Across the 2nd Dimension
Jeff 'Swampy' Marsh was
50 in Phineas and Ferb The Movie: Across the 2nd Dimension
as 'Major Francis Monogram / Monogram-2 (voice)'.
Fri, Aug 05 2011
Poster of Phineas and Ferb: Summer Belongs to You!
Phineas and Ferb: Summer Belongs to You!
Jeff 'Swampy' Marsh was
49 in Phineas and Ferb: Summer Belongs to You!
as 'Major Francis Monogram (voice) / Additional Voices'.
Mon, Aug 02 2010
Poster of Phineas and Ferb Christmas Vacation!
Phineas and Ferb Christmas Vacation!
Jeff 'Swampy' Marsh was
48 in Phineas and Ferb Christmas Vacation!
as 'Major Monogram (voice)'.
Mon, Dec 07 2009

TV Shows (Acting Roles)

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Ages in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages
Poster of Milo Murphy's Law
Milo Murphy's Law
Jeff 'Swampy' Marsh was
55+ in Milo Murphy's Law
as 'Additional Voices (voice)'.
First Air Date
Mon, Oct 03 2016
Poster of Phineas and Ferb
Phineas and Ferb
Jeff 'Swampy' Marsh was
46+ in Phineas and Ferb
as 'Francis Monogram (voice)'.
First Air Date
Fri, Aug 17 2007
Poster of Bounty Hamster
Bounty Hamster
Jeff 'Swampy' Marsh was
42+ in Bounty Hamster
as '(voice)'.
First Air Date
Thu, Jan 09 2003
Poster of Aaagh! It's the Mr. Hell Show!
Aaagh! It's the Mr. Hell Show!
Jeff 'Swampy' Marsh was
40+ in Aaagh! It's the Mr. Hell Show!
as 'Josh (voice)'.
First Air Date
Sun, Oct 28 2001