He is an evil-boasting scientist who is the arch-nemesis of Perry the Platypus, the latter of whom has foiled almost all of his semi-evil schemes - though a few turn out to be successful. In Milo Murphy's Law, Doofenshmirtz is revealed to be the future inventor of time travel. Dr. Doofenshmirtz makes lasers and machines that end with “-inator”, intended to take over the tri-state area or stop Perry The Platypus but they always seem to backfire or not do their job correctly!