Chekov
Here's an unpainted test shot of 7-inch Chekov figure. Here you can see the different base plastics used: the body is molded from a color that's used for the uniform (so that it doesn't have to be sprayed), while the head is molded from a neutral plastic color that can be sprayed.
The production version of Chekov turned out really well, though one can't really see the facial features here.