Madison Pettis provides voice for Adyson, one of the Fireside Girls, in Phineas and Ferb. She also plays the daughter of the President of the United States, Sophie, in Cory in the House, and the President's Daughter in Hannah Montana. She has also starred in Mostly Ghostly: Who Let the Ghosts Out? as a ghost.
She is currently appearing as one of the 5th graders on Are You Smarter Than a Fifth Grader?