Dr Doofenshmirtz may be one of the newest entries on this list, but the evil scientist from Phinneas and Ferb has quickly made a big impression with his attempts to wreak havoc upon the tri-state area. We love his back-story monologues about his childhood in Gimelschtump, Druselstien. We love his ridiculously named devices (the the Ugly-Inator, the Age-Acclerator-Inator) and that his nemesis is a platypus. The subtleties of the relationship are pitch-perfect. When Perry busts in on Doofenshmirtz when his blind date is about to arrive, Perry accomodates his rival by pretending to be his pet (She doesnt know I have a nemesis). And most of all, we love his songs.