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Many Faces - Actors Who've Worn Prosthetic Makeup

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Ron Perlman, 'Hellboy'
Visionary director Guillermo del Toro didn't rely on CGI to create his Hellboy films. Instead, he had Ron Perlman sit in a makeup chair for long hours every day until he was transformed into the total bad ass you see pictured here. "The actual time he was sitting in the chair was usually two and a half hours," makeup artist Jake Garber told HowStuffWorks.com.