In Phineas and Ferb Dr. Doofenshmirtz is an evil scientist who wants to use his machines to take over the Tri-State Area. He says he is “an evil scientist, not a mad scientist”. His nemesis Perry the Platypus stops his evil plans every day. Dr. Doofenshmirtz also has a lot of bad luck and says the reason he loses every time is because he has “poor planning skills”. Doofenshmirtz also gives almost every machine he builds a name ending with “inator”. Even though he calls himself evil and is the villain of the show, he has some good wikt:traits. For instance, he really does love his daughter Vanessa.