THEN & NOW: The cast of 'Harry Potter' 15 years later

Wednesday marks the 15th anniversary of the release of "Harry Potter and the Sorcerer's Stone," the first movie in the franchise about a young wizard destined to be a hero, adapted from J.K. Rowling's novels.

When the first "Harry Potter" movie was released in 2001, Daniel Radcliffe was an 11-year-old with only a few acting credits to his name.

Needless to say, a lot has changed since then. Radcliffe went on to gain international fame, playing roles on the stage and screen.

But he's not the only one. Many of his Hogwarts classmates and professors have starred in some of our favorite films and television shows, from "Star Wars: The Force Awakens" to AMC's "Fear the Walking Dead."

In honor of the anniversary, here's a look at what the many stars of the "Harry Potter" franchise are up to now: