- Vincent Martella (Phineas Flynn (voice))
- David Errigo Jr. (Ferb Fletcher (voice))
- Ashley French (Candace Flynn (voice))
- Caroline Rhea (Linda Flynn-Fletcher (voice))
- Dee Bradley Baker (Perry the Platypus (voice))
- Alyson Stoner (Isabella Garcia-Shapiro (voice))
- Dan Povenmire (Heinz Doofenshmirtz (voice))
- Jeff 'Swampy' Marsh (Francis Monogram (voice))
Phineas and Ferb — S3E46
Episode: Agent Doof
Air Date: 2012-05-11
Runtime: 11 min
Overview
Candace's plans to watch over Phineas and Ferb backfire when Dr. Doofenshmirtz's "Babe-inator" turns her brothers into babies. After having an epiphany, Dr. Doofenshmirtz shows up at the OWCA to give up his evil ways. Agent P has no choice but to show Dr. Doofenshmirtz the ropes of the trade, but things quickly sour between the two after Dr. Doofenshmirtz accidentally exposes the identity of a fellow animal agent.