The second season of Phineas and Ferb features two step-brothers on summer vacation 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, their older sister Candace Flynn, secret agent Perry the Platypus, and the evil Dr. Heinz Doofenshmirtz.Recurring characters include across-the-street neighbor Isabella Garcia-Shapiro, the boys’ mom Linda Flynn-Fletcher, their father Lawrence Fletcher, Perry’s boss, Major Monogram, Jeremy Johnson, Baljeet, Buford Van Stomm, Stacy Hirano, Ducky MoMo, and many more.