
Jeff 'Swampy' Marsh
Acting
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 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.
Born: December 9, 1960
Place of Birth: Santa Monica, California, USA
Known For

Spiked
Holly is a young, courageous hedgehog, but woefully sheltered by her overprotective Dad. Walter is an overworked, exhausted rabbit with a few dozen kids of his own, who just wants a change in his predictable routine. When this unlikely duo crashes into each other’s lives, things take a drastic turn. After a bump to the head Walter now believes that he is Sir Balderdash the Great – a hero, a warrior, a legend. While Holly, who is just thrilled to be out of the house, gets swept up in Walter's concussion fuelled fantasy.

Phineas and Ferb: The Perry Files - Animal Agents
Perry the Platypus - a.k.a. Agent P - and his fellow operatives team up to thwart Dr. Doofenshmirtz and his dastardly "Inators." Be they furry or feathered, scaly or slimy, these fearless agents roll over for nobody when it comes to crushing evil in the Tri-State Area and beyond.

Phineas and Ferb: Last Day of Summer
On the inevitable 104th day of summer vacation, the season — and the series — is quickly coming to an end, and it’s Candace’s last chance to bust her brothers; who build huge playground equipment for the finale of summer. She is quickly foiled, but when she goes to return a DVD to Vanessa and finds Dr. Doofenshmirtz’s Do-Over-Inator, she finds an opportunity to redo the day, which results in other consequences like rips in the space-time continuum, the shortening of days and the disappearance of her brothers.

Phineas and Ferb Save Summer
When L.O.V.E.M.U.F.F.I.N. moves the Earth further from the sun, Phineas and Ferb must find a way to save summer and prevent a new ice age.

Phineas and Ferb: Night of the Living Pharmacists
Doofenshmirtz's latest "-inator" accidentally turns the citizens of Danville into contagious mindless repulsive pharmacists that look like him who run rampant all over town. Agent P and the kids must work together to save Danville and avoid becoming mindless repulsive pharmacists themselves.

Phineas and Ferb: Summer Belongs to You!
It's the summer solstice, so Phineas, Ferb, and their friends decide to travel around the world in one day in an effort to create the "biggest, longest, funnest summer day of all time". But not everyone believes they can actually achieve what they have set out to do, especially Buford. Candace tags along because Jeremy is on a trip to Paris, and she fears that there he may meet other girls. Also, Isabella finds her affections for Phineas sorely tested when his steadfast focus on achieving his goal puts pressure on her. Meanwhile, Dr. Doofenshmirtz takes a father trip to Tokyo, Japan with Vanessa, but sets out with Perry and Major Monogram to find her when she joins Phineas, Ferb and the others.

Phineas and Ferb
Each day, two kindhearted suburban stepbrothers on summer vacation embark on some grand new project, which annoys their controlling sister, Candace, who tries to bust them. Meanwhile, their pet platypus plots against evil Dr. Doofenshmirtz.

O.W.C.A. Files
When an attack on the O.W.C.A. incapacitates the animal agents, only Agent P and his animal trainees can save the day. Carl and Monogram fend for themselves.

Milo Murphy's Law
Milo Murphy is the personification of Murphy’s Law where anything that can go wrong will go wrong. Suffering from Extreme Hereditary Murphy’s Law condition (EHML), Milo always looks to make the best of the cards he’s been dealt and his endless optimism and enthusiasm can turn any catastrophe into a wild adventure. Together, he and his friends will learn that it’s all about a positive attitude and not to sweat the big stuff… and it’s all big stuff.

Phineas and Ferb the Movie: Candace Against the Universe
Phineas and Ferb travel across the galaxy to rescue their older sister Candace, who has been abducted by aliens and taken to a utopia in a far-off planet, free of her pesky little brothers.
Filmography
as Major Monogram (voice)
as (voice)
as Major Monogram (voice)
as Major Monogram (voice)
as Additional Voices (voice)
as Major Monogram / Additional Voices (voice)
as Major Monogram (voice)
as Major Francis Monogram (voice)
as Major Hologram / Imperial Officer Jeff / Additional Voices
as Major Francis Monogram / Additional Voices (voice)
as Self
as Francis Major Monogram / Gordon Gutsofanemu / Additional Voices
as Major Monogram (voice)
as Major Francis Monogram / Monogram-2 (voice)
as Major Francis Monogram (voice) / Additional Voices
as Major Monogram (voice)
as Francis Monogram (voice)
as (voice)
as Josh (voice)
as Major Francis Monogram (voice)