realistic dc from real life?
I have dreamt that I was Jack Sparrow and I was selling some guy's boat to another Jack Sparrow. I've mostly dreamt of movie characters or movie stars. And David Letterman once, but he is not fictional.
The way to do it is you summon them. There are many methods for this. The easiest is to go to a door and say the person's name and know that they will be on the other side of the door. Then you open it. Or you can go to where you know they are at. For example, go to Neverland to see Peter Pan.