Phineas and Ferb S4, E3

Phineas and Ferb invent, scheme, and stay one step ahead of their bratty sister. Meanwhile, their pet platypus plots against evil Dr. Doofenshmirtz.

Cast:Vincent Martella , Dan Povenmire , Thomas Brodie-Sangster , Ashley Tisdale , Jeff 'Swampy' Marsh , Caroline Rhea , Dee Bradley Baker , Alyson Stoner , Maulik Pancholy , Bobby Gaylor , Richard O'Brien , Tyler Alexander Mann , Mitchel Musso , Kelly Hu , LC Powell , Olivia Olson , John Viener , Kari Wahlgren