Alyson Rae Stoner (born August 11, 1993) is an American actress, dancer and singer. Stoner is known for her roles in The Suite Life of Zack & Cody (as Max), Cheaper By The Dozen and Cheaper By The Dozen 2 (as Sarah Baker), Step Up and Step Up 3 (as Camille Gage), and Camp Rock and Camp Rock 2 (as Caitlyn Gellar). She has been a background dancer for several stars, such as Missy Elliott, Eminem, Outkast and Will Smith. She is also known as the voice of Isabella in the Disney Channel series Phineas and Ferb
