Act Your Age

Songs

 * Unnamed Phineas/Isabella Song

Perry's entrance to his lair
Perry's entrance to his lair should not be italicized. If no lair entrance appears, please replace this with, None.

Evil Jingle
Dr. Doofenshmirtz's Evil Jingle should be italicized, and any explanation not. If no Evil Jingle appears, please replace this with, None.

Production Information

 * On November 15, 2012, Robert F. Hughes posted a tweet in which he said that Madison Scheckel had come to write with them a Phineas/Isabella song.
 * On December 14, 2012, Dan Povenmire tweeted the photo of Vincent Martella singing the aforementioned song.
 * On March 1, 2013, Dan Povenmire, Jeff "Swampy" Marsh and Jake Whetter had a Spreecast chat. Fans were welcome to send in questions using Spreecast, Facebook, or Twitter with the hashtag "#PlatypusDay". During Spreecast, Dan and Swampy had confirmed an emotional Phineas/Isabella episode in Season 4, and mentioned that the song made them both cry.
 * On May 10, 2013, Robert F. Hughes mentioned via Twitter that this episode is not the Season 4 finale and its name is "Act Your Age".
 * Finally, on May 18, 2013, Bernie Petterson has confirmed that he and Kim Roberson are the writers and storyboard artists for this episode.

Cast

 * Vincent Martella as Phineas
 * Ashley Tisdale as Candace
 * Thomas Sangster as Ferb
 * Alyson Stoner as Isabella
 * Caroline Rhea as Mom
 * 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