Dr. Cockroach

Dr. Cockroach Ph.D is one of the five main heroes in Monsters Vs. Aliens. He is a parody of The Fly. He was once a scientist who invented a machine that would give people the ability to survive like a cockroach. Unfortunately, when he stepped into the device, he became half human, half cockroach and was sent to a secret monster prison along with Insectosaurus, B.O.B, The Missing Link, and Ginormica.