So without further ado, this is what I'd do if various characters in my projects came alive. (Hint: I might be running away because they'd probably want revenge on me for everything I put them through!) (Slight spoiler alert, for obvious reasons)
If Chloe came alive, I would probably be decently OK with it because she's not so awful. A bit of a drama queen, sure, but not that bad. I probably wouldn't want to be friends with her, however...She's not the best friend. (Cough, Paris could attest to this)
If Kaden came alive, I'd probably freak out in the worst way possible. He is the most horrible villain that I've ever created -- manipulative, a liar, violent (when he doesn't get his way) and an almost-murderer. Boy, THAT would be fun. NOT. And I'm pretty sure all my readers would agree with that fact. He'd also most definitely want revenge on me for everything he went through as a child. Running away now...
If Haileigh came alive, I'd actually probably like her quite a lot. I'd also probably want to set her up with someone or something, because that girl has a flipping terrible love life.
If Anthony came alive, that would probably be a decent person, albeit a total flirt. I'd just casually send him over to one of my readers probably though, because I'm pretty sure I promised something like that at one point. Just...don't get him angry.
So...not so horrible. But I'd be scared of them finding out that I was their author.