Mischa Barton is in fact dumber than she looks. She’s made it clear the only reason people watched The O.C. was because of her. When asked if she was surprised by the cancellation of the show she told Fox news,
“No. They killed me off.”
Then when asked if she was the main reason fans tuned in she replied,
“That’s what I think they discovered.”
It could be that, sure, but I think the more logical explanation was that the show was dumb and doomed from the beginning. Plus, you kind of have a problem when the resident badass of the show looks like a nancy. Had they cast me I would have carried that show on my back for at least seven seasons what with my rugged good looks and all.