Dan Povenmire Dr. Heinz Doofenshmirtz Creator, Voice Jeff "Swampy" Marsh Major Monogram Creator, Actor Vincent Martella Phineas Flynn Voice Thomas Brodie-Sangster Ferb Fletcher Voice Ashley Tisdale Candace Flynn Voice Caroline Rhea Linda Flynn-Fletcher Voice Richard O'Brien Lawrence Fletcher Voice Dee Bradley Baker Perry the Platypus Voice Mitchel Musso Jeremy Voice Alyson Stoner Isabella Garcia-Shapiro Voice Maulik Pancholy Baljeet Voice Kelly Hu Stacy Voice Tyler Mann Carl Voice Olivia Olson Vanessa Doofenshmirtz Voice Kari Wahlgren Susy Johnson Voice Zac Moncrief Director