Some actors are just that ACTORS! I mean Dustin Hoffman as an autistic in Rain Man...never bought it!!
However Michael K Williams is something much more, so much so, it's hard to even put into words! Right now he's also appearing in The Night Of on HBO and before that was on Boardwalk Empire, etc etc! Whatever role he takes on, he totally has me convinced he's that person, good or bad.
OH and I'm going to try to watch Big Stone Gap! For some reason, I just couldnt get into the book!