5 Actors Who Lost or Gained an Astonishing Amount of Weight to Terrify in Horror Movies

Jake Gyllenhaal – Nightcrawler

I’m still a little uncertain of how Nightcrawler avoided a horror classification, but it did. Make zero mistake, however, this is every bit as much a horror film as it is a thriller. Gyllenhaal’s character, Louis Bloom will convince you of that, and it won’t take too long to do so.

Gyllenhaal has become known for his ability to alter his physical appearance without a world of difficulty, which suited him well for this particular role. The generally in-shape Gyllenhaal dropped 30 pounds and credited his physical hunger to the hunger – figurative and literal – that Bloom’s character exhibited throughout Nightcrawler.

While not the most outlandish transformation on this list, Nightcrawler is certainly one of the more frightening films to be featured here.