10 Horror Movie Villains Secretly Introduced Way Earlier Than You Realise

10. The Crawlers - The Descent

Arguably one of the greatest British horror movies ever made, The Descent is the terrifying tale of Sarah and her group of adrenaline-junkie friends being trapped in a never-ending maze of cave tunnels. The claustrophobic feel of the film, coupled with the rising paranoia among the group, makes the sudden reveal of the real villains of the piece even more terrifying.

The caves the women are trapped in are revealed to be infested by pale white creatures known as 'Crawlers'. The monsters hunt the group down, but one scene in particular shows that the Crawlers had been following the women even longer than the audience might have first realised.

With Juno, one of the group members, illuminating a cavern with one of their flares, a wide shot shows all of the women's shadows staring at the environment around them. To the far left is another figure standing away from the group which, for those who actually catch a glimpse of the figure, might just dismiss as being one of the women.

However, when the figure crouches down like an animal, the truth is far more horrifying. It's another small detail for the film, but one that adds so much more terror.