Actually, I disagree regarding Max, I think she's been too involved. In canon, Max is more the reluctant hero than anything else. She goes on missions because Logan asks her to in exchange for information on her sibs, and later because transgenics were involved, or children. I've been working on getting Sam more involved in major events, but the plots are so involved and move so quickly here that I'm sorry if I don't have the time to do every single one. I'd burn out. I do what I can with the time that I have and I don't think that I should have to drop a character that I enjoy playing simply because he can't go be a big damn hero in every single plot.

And I never said that Sam wasn't angry about Dean coming and going, or the losses. The last time Dean went home, Sam picked a fight with Isis and got himself killed. With regards to Jo running away, he was upset by that, but not enough that he was going to run around punching walls. He knows that death and resurrection is a lot to deal with. He's not just some mindless angry automaton. I think he's a bit more evolved than that, even on the show. In the later seasons, it manifests more in recklessness than outright anger, so perhaps this is just a difference in the viewing of characterization.

But as I said, I will canon review and work on getting more regular CR for him in the future.