The opening of this movie gives us a nice narrative voiceover by Sheriff Ed Tom Bell. And Ed Tom definitely remains the strongest voice of reflection and narration for the rest of the movie.
But the majority of the movie's perspective comes to us through the perspective of Llewellyn Moss as he tries to escape the people who are hunting him down, with brief detours into the perspective of the killer Anton Chigurh and Moss's wife Carla Jean.
In the end, though, we circle back to lose out with a speech by Ed Tom Bell, who gives us his final thoughts on what (if anything) we're supposed to take away from this film. It's fitting that a film called No Country for Old Men ends with an old man saying he's outgrown the world, right?