THEN & NOW: Here's what all the 'Harry Potter' child stars have been up to

Photo by Ian Gavan/Getty Images

15 years have passed since Daniel Radcliffe appeared in "Harry Potter and the Sorcerer's Stone" with that lightning-bolt-shaped scar on his forehead.

Since then, he's grown up, defeated Voldemort, and gone on to act in a bunch of other different movies.

The child actors in the "Harry Potter" movies have all transformed. Some of their acting careers have taken off after the series, and others are still trying to figure it out. There's no question, though, that the eight-film series between 2001 and 2011 has changed their lives forever.

Here's what the main child actors looked like when they were first introduced in the "Harry Potter" movie series, and what they look like now and have been doing.

Daniel Radcliffe was just 11 years old when he started filming 2001's "Harry Potter and the Sorcerer's Stone."

Since finishing the series, he's had an eclectic career, playing everything from a morose doctor in "The Young Doctor's Notebook" to a flatulent corpse in "Swiss Army Man."

In the early "Harry Potter" movies, filmmakers gave Emma Watson Hermione Granger's famously "bushy" hair.