Once again it's Halloween, and for most Americans that means two things sure to make you sick: candy and horror movies. They may not be good for you, but people just can't seem to get enough of either, which may help explain why so many of our most popular stars got their start in horror movies. Some of the best horror movies ever made have been low-budget flicks churned out to meet the ever-present demand for more horror, and in Hollywood, low-budgets mean unknown actors.

In honor of Halloween, here's our list of some of the Hollywood careers launched by horror movies. Because before they were famous, they had to make a living the old fashioned way: by shedding blood for our amusement.