9 Actors You Didn’t Know Were In Movies

4. Ian Brown In The Prisoner Of Azkaban

Okay, okay, he's not an actor, per se. But still, The Stone Roses' legendary frontman Ian Brown in a Harry Potter movie?

In the epitome of a 'blink and you'll miss it' appearance, King Monkey is shown in the Leaky Cauldron pub. This super brief cameo finds Brown magically stirring his drink while reading Stephen Hawking's A Brief History of Time.

You wouldn't necessarily think of Ian Brown's swagger and cocksure persona being a natural fit for the world of Harry Potter, but this appearance all came about after Azkaban director Alfonso Cuarón approached the singer to see if he wanted to appear in the threequel.

After speaking to his son, Brown decided to take the gig. The logic being, his son was a huge Harry Potter fan - plus this afforded Ian's son the chance to spend a day on the set of The Prisoner of Azkaban.

To go all 'this writer' for a second, this writer may or may not have dragged along to see this film in the cinema purely on the promise of Ian Brown being in it. Shortchanged, much? As someone who at that point in time hadn't seen the previous two Potter movies, shortchanged for sure.