Here some Supernatural related pieces of Jim Beaver‘s interview with TV Guide:

TVGuide.com: Turning to Supernatural, I understand an intervention of sorts is coming for Sam….
Beaver: Bobby and Dean will get together to plot out a way to save Sam from himself. Now that he’s got this demon blood addiction, that’s very troubling to them. But then again, Dean and Bobby don’t completely agree on how to handle it, and things get heated between them as well.

TVGuide.com: What’s Bobby’s take on the brothers’ growing rift?
Beaver: I think he shares Dean’s concerns about Sam, but Bobby’s always had a pretty good insight into Dean as well, about how much guilt Dean carries for not living up to what he thinks his father would have done. You’re going to see Bobby try to help Dean with that, even in the midst of trying to resolve things with Sam.

TVGuide.com: Has this proven to be some of the more interesting work you’ve done on the show?
Beaver: Yeah! They keep giving me great fun stuff to do, and there are some luscious scenes coming up – really strong stuff between me and Jensen [Ackles] in particular. The fans are going to get satisfaction, pretty strongly, from these last few episodes.

TVGuide.com: But to balance out that good, there is buzz that Bobby might meet his maker by season’s end. Do you have any words of reassurance for your fans?
Beaver: Hmmm… Words of reassurance… Boy, I wish I had some!

TVGuide.com: Maybe, “If Bobby goes down, it won’t be without a fight”?
Beaver: Well, nobody takes Bobby down easy!

TVGuide.com: What three words would you use to describe the season finale?
Beaver: Intense … astonishing … and intense again. People are going to have some of their expectations toppled.

Source: tvguide.com