Phineas and Ferb S4E19 poster

Watch Phineas and Ferb – Season 4 Episode 19: Happy Birthday, Isabella

Phineas and Ferb • Season 4, Episode 19 • 11 min • 2007 • ⭐ 7.9/10 • Animation , Comedy , Family , Sci-Fi & Fantasy

Cast: Dee Bradley Baker , Vincent Martella , David Errigo Jr. , Ashley Tisdale , Caroline Rhea , Alyson Stoner , Dan Povenmire , Jeff 'Swampy' Marsh

Directors: Dan Povenmire , Jeff 'Swampy' Marsh

Watch Phineas and Ferb – S4E19

Episode Overview

Phineas and the gang celebrate Isabella's birthday in a big way, but all she really wants is some quiet time with Phineas. Meanwhile, Doofenshmirtz has installed his Bugs Me-Inator onto an evil bug bus and is driving around Danville turning all the things that bug him literally into bugs.

Episode Navigation

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