Perry es un ornitorrinco que lleva una doble vida como mascota de los protagonistas de la serie y como agente secreto. Su nombre de espía es "Agente P." Trabaja para Francis Monograma. Su principal objetivo es derrotar al malvado Heinz Doofenshmirtz impidiendo que lleve a cabo sus planes.
Relaciones
Heinz Doofenshmirtz: Es el mayor enemigo de Perry. Sin embargo mantienen algo más que una relación, en el sentido de que ambos aman odiarse el uno al otro.
Francis Monograma: Es su jefe, quien le da indicaciones acerca de los malvados planes de Doofenshmirtz, normalmente información irrelevante.
Phineas, Ferb y los demás personajes: Ante ellos Perry debe proteger su identidad secreta de espía. Para lograrlo, Perry se comporta como una simple mascota que, según los demás: "No hace gran cosa". Pese a lo anterior, en algunos episodios se ha demostrado que Perry siente gran aprecio hacia sus dueños, especialmente hacia Phineas. En el episodio Viaje al centro de Candace, Perry ataca a Doofenshmirtz al percatarse que su invento podría destruir a Phineas y Ferb. Y en otra ocasión, en el que iban a transladar a Perry con otro enemigo, él estaba triste por dejarles.
Agente P
"Agente P" es el nombre secreto de Perry. La transformación de Perry en el Agente P ocurre en el momento en que este comienza a caminar en dos patas, y en el momento en que se coloca su peculiar sombrero de agente.
A fin de ponerse al tanto de los planes de Doofenshmirtz, Perry recibe información del Mayor Monograma. Para ello, Perry se dirige a su guarida, aprovechando cualquier descuido de Phineas y Ferb o sus amigos mientras va a un medio de acceso de la guarida, a la que ingresa por diversos medios de acceso/escape.
Perry es parte de la comunidad LGBTQIA+, ya que es asexual, confirmado por Dan Povenmire.
Junto con Doofenshmirtz, Perry forma parte de un gag recurrente dentro de la serie. De alguna manera, sus misiones siempre terminan cubriendo accidentalmente toda evidencia de las actividades que realizan Phineas y Ferb, por lo cual Linda Flynn, madre de Phineas y Ferb nunca descubre lo que los chicos han hecho, a pesar de que a ellos no les importe que ella se entere.
En algunos episodios Francis Monograma ofrece disculpas a Perry debido a las "dificultades técnicas" que presentan los medios de escape.
Al ser un ornitorrinco, Perry tiene los pies planos.
Perry tiene la capacidad de comunicarse con los castores.
Cuando Phineas y Ferb crean un muñeco de inacción basado en Perry para una compañía, buscando más modificaciones para el personaje una de las ideas era casualmente hacerlo un espía.
En toda ocasión que Perry logra salir adelante de una situación difícil, se escucha su banda sonora.
A pesar de que a lo largo de la serie, casi siempre está trabajando como agente, se ha demostrado que quiere mucho a Phineas y a Ferb.
Dentro de la serie Ferb dice que el ornitorrinco es el único mamífero capaz de poner huevos, pero los equidnas también son mamíferos con dicha capacidad.
Entretenimiento:Phineas and Ferb's Rockin' Rollin' Dance Party Pirotecnia:Celebrate the Magic Desfiles:Move It! Shake It! Dance and Play It! Street Party
Temporadas Uno: "Rollercoaster" • "Candace Loses Her Head" • "The Fast and the Phineas" • "Lawn Gnome Beach Party of Terror" • "The Magnificent Few" • "S'Winter" • "Are You My Mummy?" • "Flop Starz" • "Raging Bully" • "Lights, Candace, Action!" • "Get That Bigfoot Outta My Face!" • "Tree to Get Ready" • "It's About Time!" • "Jerk De Soleil" • "Toy to the World" • "One Good Scare Ought to Do It!" • "A Hard Day's Knight" • "I, Brobot" • "Mom's Birthday" • "Journey to the Center of Candace" • "Run Away Runway" • "I Scream, You Scream" • "It's a Mud, Mud, Mud, Mud World" • "The Ballad of Badbeard" • "Dude, We're Getting the Band Back Together" • "Ready for the Bettys" • "The Flying Fishmonger" • "Phineas and Ferb Get Busted!" • "Greece Lightning" • "Leave the Busting to Us!" • "Crack That Whip" • "The Best Lazy Day Ever" • "Boyfriend From 27,000 B.C." • "Voyage to the Bottom of Buford" • "Put That Putter Away" • "Does This Duckbill Make Me Look Fat?" • "Traffic Cam Caper" • "Bowl-R-Ama Drama" • "The Monster of Phineas-n-Ferbenstein" • "Oil on Candace" • "Unfair Science Fair" • "Unfair Science Fair Redux (Another Story)" • "Out to Launch" • "Got Game?" • "Comet Kermillian" • "Out of Toon" • "Hail Doofania!"
Temporada Dos: "The Lake Nose Monster" • "Interview With a Platypus" • "Tip of the Day" • "Attack of the 50 Foot Sister" • "Backyard Aquarium" • "Day of the Living Gelatin" • "Elementary My Dear Stacy" • "Don't Even Blink" • "Chez Platypus" • "Perry Lays an Egg" • "Gaming the System" • "The Chronicles of Meap" • "Thaddeus and Thor" • "De Plane! De Plane!" • "Let's Take a Quiz" • "At the Car Wash" • "Oh, There You Are, Perry" • "Swiss Family Phineas" • "Phineas and Ferb Musical Cliptastic Countdown" • "Phineas and Ferb's Quantum Boogaloo" • "Hide and Seek" • "That Sinking Feeling" • "The Baljeatles" • "Vanessassary Roughness" • "No More Bunny Business" • "Spa Day" • "Bubble Boys" • "Isabella and the Temple of Sap" • "Cheer Up Candace" • "Fireside Girl Jamboree" • "The Bully Code" • "Finding Mary McGuffin" • "What Do It Do?" • "Atlantis" • "Picture This" • "Nerdy Dancin'" • "I Was a Middle Aged Robot" • "Suddenly Suzy" • "Phineas and Ferb Christmas Vacation!" • "Undercover Carl" • "Hip Hip Parade" • "Just Passing Through" • "Candace's Big Day" • "Invasion of the Ferb Snatchers" • "Ain't No Kiddie Ride" • "Wizard of Odd" • "The Beak" • "Not Phineas and Ferb" • "Phineas and Ferb-Busters!" • "The Lizard Whisperer" • "Robot Rodeo" • "The Secret of Success" • "The Doof Side of the Moon" • "She's the Mayor" • "The Lemonade Stand" • "We Call it Maze" • "Ladies and Gentlemen, Meet Max Modem!" • "Nerds of a Feather" • "Phineas and Ferb Hawaiian Vacation" • "Split Personality" • "Brain Drain" • "Make Play" • "Candace Gets Busted" • "Summer Belongs to You!" • "Rollercoaster: The Musical!" Temporada Tres: "Run, Candace, Run" • "Last Train to Bustville" • "The Great Indoors" • "Canderemy" • "The Belly of the Beast" • "Moon Farm" • "Phineas' Birthday Clip-O-Rama!" • "Ask a Foolish Question" • "Misperceived Monotreme" • "Candace Disconnected" • "Magic Carpet Ride" • "Bad Hair Day" • "Meatloaf Surprise" • "Tri-Stone Area" • "Doof Dynasty" • "Phineas and Ferb Interrupted" • "A Real Boy" • "Mommy Can You Hear Me?" • "Road Trip" • "Skiddley Whiffers" • "Tour de Ferb" • "My Fair Goalie" • "Perry the Actorpus" • "Bullseye!" • "That's the Spirit" • "The Curse of Candace" • "Escape from Phineas Tower" • "The Remains of the Platypus" • "Ferb Latin" • "Lotsa Latkes" • "A Phineas and Ferb Family Christmas" • "What a Croc!" • "Ferb TV" • "Mom's in the House" • "Minor Monogram" • "Excaliferb" • "Monster from the Id" • "Gi-Ants" • "Agent Doof" • "Phineas and Ferb and the Temple of Juatchadoon" • "Delivery of Destiny" • "Let's Bounce" • "Quietest Day Ever" • "Bully Bromance Break Up" • "Doonkleberry Imperative" • "Buford Confidential" • "Sleepwalk Surprise" • "Sci-Fi Pie Fly" • "Meapless in Seattle" • "The Mom Attractor" • "Cranius Maximus" • "Sipping with the Enemy" • "Tri-State Treasure: Boot of Secrets" • "Doofapus" • "Norm Unleashed" • "When Worlds Collide" • "Road to Danville" • "Where's Perry?" • "Blackout!" • "What'd I Miss?" • "This Is Your Backstory" Temporada Cuatro: "Fly On the Wall" • "My Sweet Ride" • "For Your Ice Only " • "Happy New Year!" • "Bully Bust" • "Backyard Hodge Podge" • "Der Kinderlumper" • "Just Desserts" • "Bee Day" • "Bee Story" • "Sidetracked" • "Knot My Problem" • "Mind Share" • "Primal Perry" • "La Candace-Cabra" • "Happy Birthday, Isabella" • "Great Balls of Water" • "Where's Pinky?" • "Mission Marvel" • "Thanks But No Thanks" • "Troy Story" • "Love at First Byte" • "One Good Turn" • "Cheers for Fears" • "Just Our Luck" • "Return Policy" • "Imperfect Storm" • "Steampunx" • "It's No Picnic" • "Terrifying Tri-State Trilogy of Terror" • "Druselsteinoween" • "Face Your Fear" • "The Klimpaloon Ultimatum" • "Doof 101" • "Father's Day" • "Operation Crumb Cake" • "Mandace" • "Tales from the Resistance: Back to the 2nd Dimension" • "The Return of the Rogue Rabbit" • "Live and Let Drive" • "Lost in Danville" • "The Inator Method" • "Act Your Age" • "Phineas and Ferb Save Summer" • "Night of the Living Pharmacists" • "Phineas and Ferb: Star Wars" • "Last Day of Summer" • "O.W.C.A. Files"
Lugares
Danville • Seattle • Franquicia de Mr. Slushy • Doofenshmirtz Malvados y Asociados • La Casa de los Flynn-Fletcher • Atlantis • Googolplex Mall • El Parque de Diversiones Abandonado • África • Inglaterra • Ciudad de Nueva York • Big Ben • Marte • Tokio • Londres • China • India • Canadá • Chile • Hawaii
Canciones
Today is Gonna Be a Great Day • Summer Belongs to You • City of Love • Jump Right In • Perry the Platypus Theme • Perry Saves Christmas • Let it Snow, Let it Snow, Let it Snow • Gitchee Gitchee Goo| • Where Did We Go Wrong? • Busted • Little Brothers • What'cha Doin? • Carpe Diem • S.I.M.P. (Squirrels In My Pants) • I'm Me • Rollercoaster • Couldn't Kick My Way Into Her Heart • The Ballad of Klimpaloon • Evil for Extra Credit • Backyard Beach • Happy New Year • Great to Be a Baby • What Might Have Been • Serious Fun • Curtain Call/Time Spent Together • Silhouettes • Follow the Sun
Everything's Better with Perry • Quirky Worky Song • Mysterious Force (canción cortada) • He's Doof • Brand New Best Friend • Victory Gum • Summer (Where Do We Begin?) • I Walk Away • Baljeet Explanation • Brand New Reality • Robot Riot • Perry the Platypus Theme • Takin' Care of Things • Kick It Up a Notch • Playing a Game of Sports • All the Convoluted Reasons We Pretend to be Divorced
El auto de Cruella • Ratcatcher • La Carroza de Cenicienta • Sable de Luz • La Pistola de Gas del Pato Darkwing • El Perla Negra • Discos de Identidad • El Bláster de Plasma • El Carro de Dulce • El Carro de Carreras de Vanellope • El Carro de Pizza Planeta • Reconocedor • Corredor de Luz • La Bola de Pixar • El Jolly Roger (versión de Parques Disney) • El Bus de la Banda del Caos • Lanzador de Béisbol
Temporada Uno: "Going the Extra Milo/Sunny Side Up" • "Rooting for the Enemy/The Undergrounders" • "The Doctor Zone Files/The Note" • "Party of Peril/Smooth Opera-tor" • "Worked Day/The Wilder West" • "Family Vacation/Murphy's Lard" • "Secrets and Pies/Athledecamathalon" • "The Substitute/Time Out" • "We're Going to the Zoo/School Dance" • "Battle of the Bands/The Math Book" • "The Little Engine That Couldn't/The Llama Incident" • "Missing Milo" • "Star Struck/Disaster of My Dreams" • "A Clockwork Origin/Perchance to Sleepwalk" • "Some Like It Yacht/Backward to School Night" • "World Without Milo/The Race" • "Love Toboggan/The Island of Lost Dakotas" • "Fungus Among Us" • "Milo Murphy's Halloween Scream-A-Torium!" • "A Christmas Peril"
Temporada Dos: "The Phineas and Ferb Effect" • "Snow Way Out/Teacher Feature" • "Picture Day/Agee lentee Diogee" • "Game Night/Pace Makes Waste" • "Cake 'Splosion!/Lady Krillers" • "Doof's Day Out/Disco Do-Over" • "The Ticking Clock/Managing Murphy's Law" • "Field of Screams/Spy Little Sister!" • "Milo's Shadow/Sick Day" • "Freefall/Milo's World" • "Dog Walker, Runner, Screamer/Now I Am a Murphy" • "Abducting Murphy's Law" • "The Goulash Legacy/The Dog Who Knew Too Much" • "Adventure Buddies/Ride Along Little Doggie!" • "Look at this Ship/Cast Party" • "Safety First/Cavendish" • "First Impressions/The Speech and Debate League of Death and Destruction Cross Town Explosion Event" • "The Mid-Afternoon Snack Club/Parks and Wreck" • "Escape/Milo in Space" • "Sphere and Loathing in Outer Space"
Canciones
It's My World (And We're All Living in It) • Don't Break Me • Rooting for the Enemy • The Doctor Zone Files Theme Song • I've Got No Excuses • Mister Go • The Show Must Go On • Murphy Family Vacation • Lard World • Chop Away at My Heart • We're Going to the Zoo • I Need A Little TLC • Just Roll With It • A Bumpy Ride Tonight • Llama Llama • I Can't Find You • Safety Czar • I'm Taking A Stroll • World Without Milo • Toboggan of Love • I'm All Tied Up