Blue's Clues/Phineas and Ferb

Cast

 * Steve as Phineas
 * Mailbox as Ferb
 * Magenta as Isabella
 * Blue as Perry
 * Joe as Major Monogram
 * Mr. Salt as Jeremy
 * Mrs. Pepper as Candace
 * Paprika as Baby Isabella (From 'Agent Doof')
 * Pail and Shovel as Buford and Baljeet
 * Periwinkle as Gretchen
 * Tickety Tock as Milly
 * Slippery Soap as Irving
 * Sidetable Drawer as Albert
 * Swiper (from Dora the Explorer) as Dr. Doofenshmirtz