Tags: Television Season.
The fourth season of Phineas and Ferb first aired on Disney Channel on December 7 2012 and December 31 2012 for Disney XD. The season features two step-brothers trying to make every day the best day ever while their sister tries to bust them. The five main characters are: brothers Phineas Flynn and Ferb Fletcher secret agent Perry the Platypus (who’s also the pet of Phineas and Ferb) the evil scientist Dr.