Jeff 'Swampy' Marsh
- Actor
- Writer
- Producer
Jeff Swampy Marsh is an American voice actor, animator, cartoonist, singer and writer from California. He co-created Phineas & Ferb and Milo Murphy's Law alongside Dan Povenmire. He also worked on various episodes of Family Guy, Rocko's Modern Life and SpongeBob SquarePants. He is known for voicing Major Monogram, who is essentially an equivalent of Nick Fury for Perry the Platypus in Phineas & Ferb.
- Nominated for 6 Primetime Emmys
- 3 wins & 16 nominations total
8.1
TV Series
- Major Francis Monogram
- Additional Voices
- Man #1
- Man
- Gordon Gutsofanemu
- Narrator
- Man #2
- Radio Announcer
- TV Announcer
- TV Announcer #1
- Biker
- Customer #1
- Deep Voice Isabella
- Dink Winkerson
- Man #3
- Man #6
- Phil
- Photographer
- Self
- Title Card Narrator
- Airplane Pilot
- Al Reynolds
- Alaric
- Aliens
- Angry Drusselstenians
- Angry Mob
- Angry Wet Guy
- Ants
- Arena Employee
- Astronaut
- Auction Crowd
- Auctioneer
- Balthazar's Dad
- Beastbogs
- Better Panda Employee
- Bike Man
- British Man
- British Meap
- Burdensome Elf
- Carnival Man
- Cashier
- Casino Guy
- Chef
- Computer Voice
- Construction Worker
- Cotillion Crowner
- Cowboy Singer
- Crowd
- Crying Man
- Customer
- Customer #6
- Dandruff Commercial Announcer
- Deep Voice Gretchen
- Delivery Man
- Delivery Man #1
- Doberman
- Documentary Narrator
- Dodo
- Dr. Shlussel
- Dull Kid
- Evil Scientist #1
- Ferb Latin Speakers
- Fisherman
- Giant Meatlings
- Giant Mole Man
- Guard #4
- Haney
- Harry
- Heckler #1
- Helicopter Pilot
- Hotel Employee
- Jeff
- Joe #3
- John P. Trystate
- Josh
- Judge #1
- Juror #9
- Laughing Man #1
- Lemonade Machine
- Li'l Saul
- Little Alien
- Maitre D'
- Major Hologram
- Major Megaburns
- Major Monogram
- Male Realtor
- Man #5
- Man #8
- Man at Concert #1
- Man in Ferb Outfit
- Man on Sidewalk
- Mission Control Voice
- Monogram Fairy
- Monopunzal
- Movie Crew Member #1
- Mr. Garcia-Shapiro
- Mt. Rushmore Tourist
- Museum PA
- Musical Countdown Announcer
- Mustached Man
- Neighbor
- New Years Partygoers
- News Announcer
- Newsman
- Nostrils Coach
- Old Man #2
- Ostrich Driver
- PA Announcer
- Pancake Announcer
- Partygoer #4
- Patient
- Pharaoh
- Plastic Man
- Professor Onassis
- Psychiatrist
- Punk Teen #4
- Puppet Man
- Racers
- Radio DJ
- Raking Guy
- Rat Kid
- Recipient
- Referee
- Robber
- Sailor #1
- Salesman #1
- Scientist #1
- Security Guard
- Sergei
- Singer
- Speckie Guard #2
- Sprocket Guy
- Stage Manager
- Steve #4
- Store Employee
- Suspect #1
- TV Announcer #2
- TV Voice
- Talking Zebra
- Tarzan
- Teen #2
- The Artbot
- Ticket Usher
- Time Card Narrator
- Toothpaste Commercial Announcer
- Tower
- Trucker #1
- Tuff Talk Guy
- Vampire
- Volcano Delivery Man
- Voter #2
- Wax Robots
- Worker #1(voice)
Actor
- 2025
- 2022–2023
- 2020–2022
- 2021
- 2021
- 2020
- 2016–2019
- 2016
- 2014–2015
- 2007–2015
- 2014
- 2013
- Phineas and Ferb the Movie: Across the 2nd Dimension7.4TV Movie
- Major Francis Monogram
- Monogram-2
- Tow Truck Driver (voice, as Swampy Marsh) ...
- 2011
- 2011
- 2009
- 2003
Writer
- 2025
Producer
- 2025
- Official site
- Alternative names
- Jeff Harsh
- Height
- 5′ 8″ (1.73 m)
- Born
- Spouse
- BirgitteDecember 17, 2006 - present (2 children)
- Children
- RelativesLes Brown Jr.(Aunt or Uncle)
- Gender / Gender identity
- Male
- TriviaIt took 16 years of Dan Povenmire and he pitching the show, Phineas and Ferb (2007), to everyone before Disney put the show on the air.
FAQ11
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