I am about 300 pages into the book and I can't stop imagining James Gandolfini as Big Jim... even though I don't think he'd be right for the part. John Goodman either. I am trying to imagine Ron Perlman, who I think would be good. But it's just not working.
For Dale Barbara I am completely picturing Sam Rockwell ("Moon", "Confessions of a Dangerous Mind"). Although Tobey Maguire from that movie "Brothers" (but only from that movie) might work.
And for some reason I keep hearing Jane Lynch when I read Julia Shumway. She plays the badass cheerleading coach on "Glee", but I know her from "Best in Show" and "Party Down".