Josh Brolin did a tremendous job in No Country for Old Men, playing the role of Llewelyn Moss. He's gone on record as saying he's a huge fan of the ending, too.
You might recognize Josh Brolin from No Country for Old Men or American Gangster.
He started his career in TV movies and guest spots on TV shows before getting a more notable role as Brand Walsh in the Richard Donner-directed movie The Goonies.