A gray is a wiry, child-sized humanoid with gray skin, long, willowy limbs and a bulbous head with tiny mouths, a nearly-invisible nose, and oversized black eyes that show little emotion. Their feet and hands are similar to those of a human, but smaller and more delicate. According to a report, gray flesh feels like soft rubber and is not divided into individual groups, and they bleed black blood. Grays smell bizarre, meaning that small animals like squoxes can serve as early warning systems against them.