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.
TV Series
- Major Francis Monogram
- Man #1
- Gordon Gutsofanemu
- Man
- Narrator
- Man #2
- Announcer
- Computer Voice
- Radio Announcer
- TV Announcer
- TV Announcer #1
- Title Card Narrator
- Biker
- Customer #1
- Deep Voice Isabella
- Dink Winkerson
- Man #3
- Man #6
- Phil
- Photographer
- Self
- 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
- Block Party Worker
- Bouncer
- British Man
- British Meap
- Burdensome Elf
- Burly Guy
- Cameraman
- Carnival Man
- Cashier
- Cashier #2
- Casino Guy
- Chef
- Collector #6
- Construction Worker
- Cotillion Crowner
- Cowboy Singer
- Crowd
- Crying Man
- Customer
- Customer #6
- Dandruff Commercial Announcer
- Deep Voice Gretchen
- Delivery Man
- Delivery Man #1
- Director #1
- Doberman
- Documentary Narrator
- Dodo
- Dr. Shlussel
- Dull Kid
- Evil Scientist #1
- Fairgoer #1
- Ferb Latin Speakers
- Fisherman
- Flautist
- Giant Meatlings
- Giant Mole Man
- Gnome
- Guard #4
- Haney
- Harry
- Heckler #1
- Helicopter Pilot
- Hotel Employee
- Imperial Officer #6
- Imperial Officer Jeff
- Jeff
- Joe #3
- John P. Trystate
- Josh
- Judge #1
- Juror #9
- Laughing Man #1
- Lemonade Machine
- Li'l Saul
- Little Alien
- Louis Lumière
- Maitre D'
- Major Hologram
- Major Megaburns
- Male Realtor
- Man #4
- Man #5
- Man #8
- Man at Concert #1
- Man in Ferb Outfit
- Man on Sidewalk
- Man with Bagpipes
- Mike
- Mission Control Voice
- Monogram Fairy
- Monogram-2
- Monopunzal
- Movie Crew Member #1
- Mr. Garcia-Shapiro
- Mt. Rushmore Tourist
- Museum PA
- Musical Countdown Announcer
- Mustached Man
- Neighbor
- New Years Partygoers
- New York Citizen
- News Announcer
- Newsman
- Newsreader
- Nostrils Coach
- Nurse
- Old Man
- Old Man #2
- Ostrich Driver
- PA Announcer
- Pancake Announcer
- Partygoer #4
- Patient
- Pharaoh
- Plastic Man
- Professor Furlong
- Professor Onassis
- Psychiatrist
- Punk Teen #4
- Punk Teens
- 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
- Stormtrooper #3
- Suspect #1
- TV Announcer #2
- TV Voice
- Talking Zebra
- Tarzan
- Teen #2
- The Artbot
- Ticket Usher
- Time Card Narrator
- Toothpaste Commercial Announcer
- Tour Guide
- Tower
- Trucker #1
- Tuff Talk Guy
- Vampire
- Villain #3
- Volcano Delivery Man
- Voter #2
- Waiter
- Wax Robots
- Worker #1(voice)
