Your Cooper voice looks fine to me, although I can't recall any particular scene that stands out more than the others. I like how you can always tell the difference between BOB and Cooper based on how they act or speak, though.

As for Annie -I must confess I haven't watched Twin Peaks in a long time and my memories of her are a bit fuzzy. I liked her in this fic but I can't tell if she's in character or not. *hangs head in shame*

I hadn't heard about that 3rd series thing. I'm certainly glad to learn Coop was supposed to be OK.