Madison Pettis provides voice for Adyson Sweetwater, 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. She has also starred in Mostly Ghostly: Who Let the Ghosts Out? as a ghost.

She appeared as one of the 5th graders on Are You Smarter Than a Fifth Grader? for the 2008 series. She currently voices Izzy in Jake and the Never Land Pirates, a Disney Juinor series, and appears in the sitcom Life With Boys.