Okay step one is push this button. Step two stand back in awe.

Description: Phineas and Ferb discover that Perry is a secret agent, and they all get stuck in an alternate dimension where Doofenschmirtz is the ruler of the tri-state area.

Cast:
Phineas Flynn: Vincent Martella
Candace Flynn: Ashley Tisdale
Ferb Fletcher: Thomas Brodie-Sangster
Linda Flynn-Fletcher: Caroline Rhea
Lawrence Fletcher: Richard O'Brien
Dr. Heinz Doofenshmirtz: Dan Povenmire
Major Francis Monogram: Jeff 'Swampy' Marsh
Isabella Garcia-Shapiro: Alyson Stoner
Baljeet Rai: Maulik Pancholy
Buford Van Stomm: Bobby Gaylor
Jeremy Johnson / Jeremy-2 / Additional Voices (voice): Mitchel Musso
Carl: Tyler Alexander Mann
Perry the Platypus: Dee Bradley Baker
Stacy Hirano: Kelly Hu
Vanessa Doofenshmirtz / Vanessa-2 (voice) (scenes deleted): Olivia Olson
Norm: John Viener
Irving (voice): Jack McBrayer
Additional Voices (voice): Laura Dickinson
Gretchen / Additional Voices (voice): Ariel Winter
Mrs. Thompson (voice): Doris Roberts
Additional Voices (voice) (as Grey DeLisle): Grey Griffin
Milly (voice): Isabella Murad
Danny (voice): Jaret Reddick
Additional Voices (voice) (as Jennifer Hughes): Jennifer L. Hughes
Normbots / Additional Voices (voice): Kevin Michael Richardson
Isabella (voice): Masha Eremenko
Ferb-2 (singing voice): Danny Jacob
Self: Slash

Written by: Jon Colton Barry, Dan Povenmire, Jeff 'Swampy' Marsh

Director: Robert Hughes, Dan Povenmire, Jay Lender

Production: Disney Television Animation

Release date: 05 Aug 2011