Showdown at the 2nd Dimension

Showdown at the 2nd Dimension is an upcoming 44-minute episode the Sequel to Phineas and Ferb the Movie: Across the 2nd Dimension and Tales From the Resistance: Back to the 2nd Dimension

Cast

 * Vincent Martella as Phineas (2nd Dimension)
 * Ashley Tisdale as Candace (2nd Dimension)
 * Thomas Sangster as Ferb (2nd Dimension)
 * Caroline Rhea as Mom (2nd Dimension)
 * Dee Bradley Baker as Agent Perry the Platyborg, Pinky the Chihuahua (2nd Dimension), Peter the Panda (2nd Dimension)
 * Richard O'Brien as Dad (2nd Dimension)
 * Alyson Stoner as Isabella (2nd Dimension), Jenny (2nd Dimension)
 * Dan Povenmire as Dr. Doofenshmirtz (2nd Dimension)
 * Allison Janney as Charlene (2nd Dimension)
 * Olivia Olson as Vanessa (2nd Dimension)
 * Adam Sandler as Doom - The secundary antagonist of the television series and Heinz's sidekick.
 * Jeff "Swampy" Marsh as Major Monogram (2nd Dimension), Additional Voices
 * Mitchel Musso as Jeremy (2nd Dimension)
 * Bobby Gaylor as Buford (2nd Dimension)
 * Maulik Pancholy as Baljeet (2nd Dimension), Additonal Voices
 * Tyler Alexander Mann as Carl (2nd Dimension)
 * Tiffany Espensen as Ginger (2nd Dimension)
 * Isabella Murad as Milly (2nd Dimension)
 * Isabella Acres as Katie (2nd Dimension)
 * Ariel Winter as Gretchen (2nd Dimension)
 * Diamond White as Holly (2nd Dimension)
 * Madison Pettis as Adyson (2nd Dimension)
 * Jack McBrayer as Irving (2nd Dimension)
 * Kari Wahlgren as Suzy (2nd Dimension)
 * Kelly Hu as Stacy (2nd Dimension)