 Additionally, her family owns and runs a subway-themed sandwich shop, and keep the fact that they are wizards a secret from most people outside of their immediate family.Alex's best friend is Harper Finkle (Jennifer Stone), a mortal to whom Alex reveals that she and her family are wizards after a few seasons.Ultimately, Alex must eventually compete against her brothers to determine who will remain the Russo family's only wizard, as only one wizard is allowed per family.