| Perry the Platypus | |
|---|---|
| Phineas and Ferb character | |
 Perry as "Agent P" | |
| First appearance | "Rollercoaster" (2007) |
| Created by | Dan Povenmire Jeff "Swampy" Marsh |
| Voiced by | Dee Bradley Baker (vocal effects) Rhys Darby (Chibiverse, speaking voice) |
| In-universe information | |
| Alias | Agent P |
| Species | Platypus |
| Gender | Male |
| Occupation | Espionage |
| Relatives | Phineas Flynn and Ferb Fletcher (owners) |
| Affiliation | O.W.C.A. |
Perry the Platypus is a fictional bipedal platypus from the American animated series Phineas and Ferb and Milo Murphy's Law. Perry was created by Dan Povenmire and Jeff "Swampy" Marsh. Perry is featured as the star of the B-plot for every episode of the series, alongside his nemesis Dr. Heinz Doofenshmirtz. A mostly silent character, his lone vocal characteristic (a rattling of his beak) is provided by Dee Bradley Baker.
Perry is the pet of the Flynn-Fletcher family and is perceived by his owners as mindless and domesticated. In secret, he lives a double life as a member of an all-animal espionage organization referred to as the O.W.C.A. (Organization Without a Cool Acronym). Many secret entrances to his underground lair exist all around the Flynn-Fletcher residence, such as the side of the house, most notably the tree that his owners sit under in the backyard, and several other everyday objects that seem to elude the family's attention, such as a potted plant and a secret elevator hidden in the lawn. Perry has also been shown to have entrances in Hawaii, London, and South Dakota. He engages in daily battles with Dr. Heinz Doofenshmirtz, an evil scientist who desires to take over the tri-state area with obscure contraptions, or "-inators", that work perfectly according to his intended function but fail in his application of them every time.
Perry was made a platypus because of the animal's striking appearance and the lack of public knowledge of the animal, which allowed the writers to make things up about the species. Critical reception for the character from both professionals and fans have been considerably positive. Merchandising of the character include plush toys, t-shirts, wooden toys, onesies, glasses, and coloring books, along with appearances in literature and multiple video games.