Jennifer Stone is an actress who is best-known for playing Alex Russo's bes… Read Full Bio ↴Jennifer Stone is an actress who is best-known for playing Alex Russo's best friend Harper Finkle on Wizards of Waverly Place. Ms. Stone has also appeared in Secondhand Lions, and played the lead role in the Disney Channel telefilm Harriet the Spy: Blog Wars. Her sole voice credit is narrating the audiobook version of Mary Rodgers and Heather Hach's juvenile novel Freaky Monday, a quasi-sequel to Freaky Friday, which was the basis for three different Disney films.