This possibility was only brought to my attention when I finally encountered another "type" of dream character in a recent dream.
Usually the DC's I meet are either going along with the plot, not saying anything or following me and leading me.

Last night I met a DC who actually came along, did something that was mean to me and then called me an asshole. His face was also a little clearer than usual and I found I could focus on him easier.
I dreamed that I had a car for sale and was showing it to some woman, when he came along, ripped up the for sale sign and called me an asshole.

So I began wondering, are there different kinds of DC? Like are there ones who lead, ones who follow, ones who antagonize you and ones who give you help?
What kinds have you met? Why would they have different personalities? Why not all of them just be bland and unfocused?