planning - Character Development - How much is too much?

I've read loads of books where the reaction and development of characters seems to extreme for the events that effect them in the story.

However not having any development makes the character boring, or at least harder to relate to.

So i was wondering how much development do you think makes the character look fake or over acted?

Thanks, Randomman159

Answer

Looking fake isn't a factor of too much character development, it's a factor of bad character development. Use as much as you need to show every facet of the character that you deem important. The way you make sure they don't seem fake is to just keep it consistent.