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 is provided by Dee Bradley Baker.

Dee Bradley Baker is an American voice actor. Much of his work has consisted of vocalizations of animals and monsters. Baker's roles include animated series such as SpongeBob SquarePants, Avatar: The Last Airbender, Codename: Kids Next Door, Gravity Falls, Steven Universe, Phineas and Ferb, Ben 10, The Legend of Korra, The 7D, Milo Murphy's Law and American Dad!. His voice work in live-action series includes Legends of the Hidden Temple and Shop 'til You Drop, as well as films such as Space Jam and The Boxtrolls.