I am also interested, I am going next week! The "stage door" is really the lobby right? I hope I'm not jacking this thread but do they come out on matinees. I'm sorry if I threadjacked.
The stage door at that theater is just the main lobby doors. There will be barricades set up so you'll know where to go. There's no other exit so everyone comes out and they're always very gracious and it's generally not too crazy (although depending on the day, Wicked gets out at the same time so you're just kind of dodging crowds). Most people come out after matinees, but that's not necessarily always the case.
Actually, there is another way out so a couple sometimes don't come out, but usually the majority do. All of them usually do come out after matinees though.
went to the matinee last Saturday and every single one of them came out and they were all so pleasant and genuinely appreciative. Hunter Parrish really does take his time with everyone and is more than happy to sign and take pictures.