Let me put it this way...

I have yet to become lucid but once I do there are a few certain things I want to do once I get there for example...

There is a certain person I want to meet and....ahem....well lets keep it at meet cause I really really REALLY want to "meet" her... so once I do become lucid, is there a way to make people or things appear because I would really like to rocket launcher all of those zombies in my dream and umm... "meet" that certain person?

So I guess my question is is it possible to make people appear, and then take it from there?