Having difficulty with lighting specific models

I’m going to add some pictures to show what I mean. here’s the first one: blob:http://imgur.com/c891dda5-186a-49d1-b0cf-7b12ca8bf2f4

You’ll notice how dark some characters are when they aren’t in the light. I used red to distinguish them. As you can see, I’ve added point lights to better light characters in the dark. I wanted to make point lights that are locked to characters, following them around and lighting up only them. A point light for character 1 will not light up character 2, or the map, so to speak.

I can always tweak the lighting to not make the characters light up like glow sticks, I’m just trying to get the base idea down. I made another screenshot showing what I want: http://i.imgur.com/x059IlY.jpg

The characters aren’t too bright, but are still somewhat lit. If any of you know how to make point lights discriminate, do you know how to get them to be locked to one character’s movement, and light only that character up?