In response to the questions about the stage door at matinees, I saw the show at the Saturday matinee. Everyone was in. The stage door had A LOT of Constantine fans (I would say that there were probably 60 - 80 people at the stage door, and at times it seemed like everyone except for me was there just to see Constantine), but the Connie fans were very well-behaved. The only featured cast member I didn't see was Richard Blake -- not sure if I just missed him or if he didn't come out. Most of the ensemble came out too. Everyone who came out gladly signed and posed. Con didn't come out for probably about half an hour or so, but he very patiently signed and posed for all of his fans (which took a while because they all wanted to talk to him and get pictures with him -- I have to give him credit for being incredibly patient and being extremely nice to everyone). At one point, a girl who looked like she was about twelve shrieked after meeting Constantine, "Oh my God, he said that he loved me!," which was one of the funniest things I have ever heard.
So basically, the matinee stage door is fine -- virtually everyone comes out, and the Constantine fans weren't any problem, at least when I went. I would say, though, that because there are so many people around the barricade, if you want to get signatures, you probably should leave the show quickly to make sure you get close. I stood next to the "main" exit, which was a great location because I was able to get Stephen/Tina/etc as they went around, but was also able to get the ensemble members as they were exiting (although a few people exited around the sides).
"What was the name of that cheese that I like?"
"you can't run away forever...but there's nothing wrong with getting a good head start"
"well I hope and I pray, that maybe someday, you'll walk in the room with my heart"