Alyson Rae Stoner (born August 11, 1993) is an American actress, dancer and singer. Stoner is known for her roles as Max in The Suite Life of Zack & Cody, Sarah Baker in Cheaper by the Dozen and Cheaper by the Dozen 2, Camille Cage in Step Up and Step Up 3, Caitlyn Gellar in Camp Rock and Camp Rock 2: The Final Jam. She has been a background dancer for several artists, such as Missy Elliott, Eminem, Outkast and Will Smith. She is also known as Sally from Mike's Super Short Show that ran from 2002–2007, and the voice of Isabella Garcia-Shapiro in Phineas and Ferb.