Played By: Nick Castle
Movie: Halloween (1978)

As Dr. Sam Loomis (Donald Pleasance) puts it in writer-director John Carpenter's 1978 slasher trend-setter Halloween, Michael Myers is "purely and simply evil." That iconic white mask is a perfect fit, since, like Myers himself, it's a blank canvas devoid of emotion. The escaped mental patient who murdered his older sister when he was only 6-years-old doesn't speak or show any signs of humanity. And, creepiest of all, he doesn't even have a legitimate motive for killing. It's just what he does.

The greatest Michael Myers moment ever happens in the original '78 film. Having just jammed a large butcher's knife into a teenage boy's chest, pinning the victim against the wall like he's a note, Myers stares at the lifeless, hanging body. And then, very subtly, Myers tilts his head and looks at the corpse in wonderment.

In this scene, Carpenter captures the character's essence: Myers' mind never advanced past that childhood day when he slaughtered his sister. It's a case of arrested development gone horribly wrong. —Matt Barone