16 actors you probably didn't realize were in the 'Harry Potter' movies

Warner Bros

We're so over these three.

When it comes to "Harry Potter," everybody knows the film's leading trifecta: Daniel Radcliffe, Rupert Grint, and Emma Watson.

But what about the dozens of other witches, wizards, and muggles who graced the screen throughout the series? While you were watching Harry and his friends fight dragons and hunt horcruxes, these performances from veteran actors and youngsters just beginning their careers might have totally passed you by.

From cameo appearances from the cast of "Dancing with the Stars" to a member of the band Radiohead, here are 16 actors you might have missed in "Harry Potter":