"Since Phineas and Ferb is essentially a celebration of summer ... while Alyson Stoner will voice Isabella Garcia-Shapiro. Additionally, Povenmire will voice the iconic Dr. Heinz Doofenshmirtz ...

Dee Bradley Baker as Perry the Platypus and Alyson Stoner as Isabella Garcia-Shapiro. Povenmire voices Dr. Heinz Doofenshmirtz while Marsh voices Major Francis Monogram. “Phineas and Ferb ...

Fans of Phineas and Ferb are in for ... Returning to voice their iconic characters are Dee Bradley-Baker as Perry the Platypus and Alyson Stoner as Isabella Garcia-Shapiro, with Dan and Swampy ...