My characters have grown along with me, and as my writing voice has evolved, so have they. I'm terribly fond of them, seeing as I've had them for about 7 or so years. Still, while I'm not one to go mass-genocide on characters, I'm not afraid to pop one off if the situation calls for it.
"Everyone and everything has a time to die." - Terciel, Abhorsen preceding Sabriel, Garth Nix's Sabriel
I think knowing the character too well is one of the downs of taking a really long time in planning. Then you have to force yourself to have them be ragged and rough around the edges at the beginning when you start writing, even though in your mind you've smoothed out all the problems already.
Precisely. So, whenI think up a character at first, I only do it on purpose to know the absolute minimum about them. Check out my latest story, for example. There is a bit of info on a new character. As my stories will move on, that new character has potential to develop.
As long as you can recognize their usefulness and how to utilize them it shouldn't matter if you are or aren't that attached I don't think. As long as you don't go George Lucas style and get super attached to some Jar Jar Binks son of a _.
I love all my characters, even the misunderstood ones.
Not really. Some of them I hate, some of them I love, some of them are just there, and I don't care either way about them. They all feel like real people to me, though. You might be scared if you knew how much I meant that.