Rick Platypus

Rick Platypus is a one-time villain from the classic Cartoon Network show, My Gym Partner's a Monkey, only appearing in "That Darn Platypus". He is one if the main alien villains from the Cartoon Network crossover event Cartoon Network Invaded. He is a shape-shifting alien, who took on the form of a platypus and enrolled himself at Charles Darwin Middle School, to help the Three Eyed Crab Aliens with their plan to steal all the world's cheese.

He is voiced by Gilbert Gottfried.

Biography
The narrative of Cartoon Network Invaded involved an army of evil aliens invading Earth and stealing all the planet's cheese, so that they could fill in the emptiness of the waning moon. They sent the shape-shifting Three Eyed Crab Aliens in disguise as regular beings to the shows Foster's Home for Imaginary Friends, Ed, Edd, & Eddy, My Gym Partner's a Monkey, Camp Lazlo, and The Grim Adventures of Billy and Mandy. The alien sent to "My Gym Partner's a Monkey" was Agent 804, who disguised himself as a platypus named Rick Platypus. He then blended in with the animal students at CDMS in order to steal all the cheese from their school.

In "That Darn Platypus", Rick was enrolled as a new student at Charles Darwin Middle School, and he was instantly feared by everyone, who apparently knew he was an alien, except for Adam, who thought there was some kind of good in him. Everyone else hid in the lockers, while Adam shamed them for shunning the new kid. He also told them that their only reasons for fearing him was because they were watching too much alien horror movies and reading too much supernatural conspiracy theory magazines.