1. Kevin Peter Hall as The Predator

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via heavybreathing

 

2. Kane Hodder as Jason Voorhees in Friday The 13th Part 8: Jason Takes Manhattan

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via fridaythe13thfranchise.com

 

3. Brian Steele as a Hell Knight in Doom

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via kickstarter.com

 

4. Doug Jones testing the rig for Pan's Labyrinth 

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via digititles.com

 

5. Bolaji Badejo as the Xenomorph in Alien

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via StencilPrinter