User blog comment:Mobo85/Jim Hill on the Future of Phineas and Ferb/@comment-3347644-20110808034106/@comment-3347644-20110808174644

Just listened to the podcast, and Hill clearly alluded to 'live action' performers for each character. (Something along the lines of "You know, get some affordale no-name kids, dye their hair red and green, and you have a real life Phineas and Ferb")