It's About Time!

It's About Time is the 21st episode of Phineas and Ferb.

Cast

 * Vincent Martella as Phineas
 * Ashley Tisdale as Candace
 * Thomas Sangster as Ferb
 * Caroline Rhea as Mom
 * Alyson Stoner as Isabella
 * Mitchel Musso as Jeremy
 * Dan Povenmire as Dr. Doofenshmirtz
 * Jeff "Swampy" Marsh as Major Monogram
 * Richard O'Brien as Dad
 * Dee Bradley Baker as Perry
 * Tyler Mann as Karl
 * Carlos Alazraqui as Dr. Feelbetter

Additional Voices

 * Carlos Alazraqui
 * Corey Burton
 * Dee Bradley Baker - T-Rex
 * Jeff "Swampy" Marsh
 * Richard O'Brien