stuck in my corner

So, I'm gonna go ahead and be completely selfish with this post. In other words, this post will consist mostly of whining, so if you don't want to hear it, well, go away.
The cast list for the spring production of Pride and Prejudice is going up tomorrow morning, in exactly 8 hours from now, and I am preparing myself not to be surprised. I would put money on my getting the role of Lady Catherine DeBourgh (if indeed I get a role at all), and I am trying to resign myself to this fact. It's not the part in and of itself that I don't want, but it's the fact that I am incredibly type-castable, and Rhett has no qualms in resorting to said type-casting. Let me explain it this way; I have a very large "bubble". which is a term used alot in Shakespeare work. In other words, I am very capable of projecting an air of superiority, confidence, and power, that makes those around me shrink away in fear (i.e. I have a strong "stage presence"). While very handy when the parts that I want require this sort of character, it is very, um, UN-handy (if you will) when the parts do not. Not that I can't BE something other than the snobby, upper-class, bitch. I mean, hello Secret Garden! It's just that not many people can give off this aura, and so Rhett gives me those roles whenever the need arises. It is slightly frustrating for a young and learning acting student, because logic seems to dictate that one must experience a variety of life's facettes in order to grow, so how can I grow when I go through life being pegged as a Lady Catherine?! BAH! And all this before I've even seen the list. Who knows? Maybe I won't get anything, and so I'll have nothing to worry about...Well, not in the way of type-casting, anyway.
So there is it. This is what constantly plagues my mind during auditions for new shows; I dread being pidgeon-holed.