Perry the Platypus

Perry the Platypus, also known as Agent P or simply Perry is an anthropomorphic platypus from the animated television series Phineas and Ferb. Perry is voiced by Dee Bradley Baker and created by the series' co-founders, Dan Povenmire and Jeff "Swampy" Marsh. He first appeared along with the majority of the main cast in the pilot episode "Rollercoaster." Perry is featured as the star of the B-Plot for every episode of the series, alongside his arch-nemesis Dr. Heinz Doofenshmirtz.

He also makes a cool noise when you squeeze his foot.