Phineas and Ferb the Movie: Across the 2nd Dimension
Perry's worst fear comes true when Phineas and Ferb finds out that he is in fact Secret Agent P, but that soon pales in comparison during a trip to the 2nd dimension where Perry finds out that Dr. Doofenshmirtz is truly evil and successful.
Released: 2011
Casts:
Vincent Martella, Ashley Tisdale, Thomas Brodie-Sangster, Caroline Rhea, Richard O'Brien, Dan Povenmire, Jeff 'Swampy' Marsh, Alyson Stoner, Maulik Pancholy, Bobby Gaylor, Mitchel Musso, Tyler Alexander Mann, Dee Bradley Baker, Kelly Hu, Olivia Olson, Laura Dickinson, Isabella Murad, John Viener, Jack McBrayer, Ariel Winter, Doris Roberts