Former THE O.C. star Mischa Barton wants to be reincarnated as Britain's top wildlife TV presenter SIR DAVID ATTENBOROUGH. The actress, 21, admits she would have followed in the footsteps of the nature documentary-maker if her screen career had not taken off. And she still refuses to rule the option out completely. She says, "I haven't met him, but that's who I want to be reincarnated as. I think he's fantastic. Now that's something I would definitely have gone into if the acting hadn't come up. "Animal documentaries, all that stuff, I'm addicted to all of it. As soon as I hit my 30s, I should change my career entirely to that."